15min test - Key

Fifteen-minute test
Grade: 12 basic
Full name: ......................................... Class: 12....
Underline the correct alternative in the following sentences.
1. Hung studied very hard, but/so he still failed the exam.
2. Lan studied very hard, so/but she passed the exam very easily.
3. It was very cold last weekend, but/so, we still went for our picnic.
4. It was very cold last week, so/but we had to cancel our picnic.
5. He was an honest boy, but/so his parents still disbelieve in him.
6. He was an honest boy, but/so he was released from prison.
7. The flight attendant serves dinner, so/but I didn't eat.
8. The negative effect of cigarette smoking is enormous, but/so many people still I smoke.
9. Jane has caught a cold, so/but she needs to take a rest.
10. The issue has been all agreed upon, but/so we need to give it a second thought.
Fifteen-minute test
Grade: 12 basic
Full name: ......................................... Class: 12....
Fill each blank with but, so, however or therefore where appropriate.
1. This is the shortest way to the city center; however it is not the only way.
2. The boy was able to learn English, but he is very lazy.
3. He didn't attend the lesson, so he could not do his homework.
4. The rice is 5000 dong per kilo, so we bought 10 kilos.
5. Your son is heading to the right direction; therefore I think you should encourage him to learn harder.
6. It was midnight, but the restaurant was still open.
7. It was midnight, so they closed the restaurant and went home.
8. He had written to her many times, but she didn't give any reply, therefore they had been out of touch ever since.
9. We discussed the issue all day, but we could not come to a final conclusion.
10. It started to rain hard; therefore we decided to stay at home to watch TV.
Fifteen-minute test
Grade: 12 basic
Full name: ......................................... Class: 12....

Fill in the blanks with: although, but, or however
1. Bob ate a large dinner. … however …, he is still hungry.
2. I had a lot of studying to do, … but … I went to a movie anyway.
3. … although … I had a lot of studying to do, I went to a movie anyway.
4. I finished all of my work … although …. I was very sleepy.
5. I washed my hands. … however …. , they still looked dirty.
6. … although. I washed my hands, they still looked dirty
7. I washed my hands, … but....they still looked dirty.
8. … although …. Marilyn didn't know how to swim, she jumped into the swimming pool.
9. I wouldn't trust Alan with my money … although. he seems to be trustworthy
10. Alan seems trustworthy and capable as a financial advisor, … but …. I wouldn't trust him with my money.
Fifteen-minute test Grade:
12 basic
Full name: ......................................... Class: 12....
Fill in each blank with the most suitable option:
1. We have not yet won; ________, we will keep trying.
a. moreover b. however c. therefore d. so as
2. I am afraid that the company is in deep trouble. ________, we are going to make some people redundant.
a. Therefore b. However c. But d. And
3. I wanted to give him some money after he helped me with the car ______ he absolutely refused to accept it.
a. so b. but c. therefore d. and so
4. Everyone is ready for the discussion, ________ him.
a. however b. but c. so d. therefore
5. He broke the rules of the school, _______he had to be punished
a. however b. but c. so d. therefore
6. The car is old, _______it is in good condition
a. moreover b. however c. therefore d. so as
7. I want to work as an interpreter in the future, ________, I am studying Russian at university.
a. but b. so c. however d. therefore
8. When she got the news from her family, she could not do anything, ________ cry.

a. but b. and c. so d. however
9. We live in the same building ________ we have hardly seen each other
a. and b. therefore c. but d. so
10. I went to buy a Rolling Stones CD ________ the shop didn't have it.
a. and b. but c. therefore d. so
Fifteen-minute test
Grade: 12 basic
Full name: ......................................... Class: 12....
Fill in each blank with the most suitable option:
1. This is an expensive ________ very useful book.
a. but b. so c. therefore d. however
2. I must say that you have done very well. ________, you should be aware that you still have a lot of thing to learn.
a. Therefore b. So c. But d. However
3. He is only sixteen, and ________, he is not eligible (đủ tư cá ch) to drive a car.
a. nevertheless b. but c. therefore d. however
4. Maria tried to read a novel in French ________ the book was too difficult for her to understand.
a. so that b. therefore c. but d. and
5. I bought a bottle of wine ________ we drank it together.
a. therefore b. so c. and d. but
6. The waiter was not very nice, ________, the food was delicious.
a. however b. but c. so d. and so
7. Anna needed some money, ________, she took a part-time job.
a. furthermore b. moreover c. however d. therefore
8. Julie has a guitar ________ she plays it really well.
a. and b. so c. but d. therefore
9. My fingers were injured, ________ my sister had to write the note for me.
a. and b. however c. so d. but
10. The concert was cancelled, ________ we went to a nightclub instead.
a. so b. however c. so on d. but
Fifteen-minute test Grade: 12 basic

Full name: ......................................... Class: 12....
Fill in each blank with the most suitable option:
1. He told me not to do it; ________, I did it.
a. Therefore b. So c. But d. However
2. We have not yet won; ________, we will keep trying.
a. moreover b. however c. therefore d. so as
3. I am afraid that the company is in deep trouble. ________, we are going to make some people redundant.
a. Therefore b. However c. But d. And
4. I wanted to give him some money after he helped me with the car ________ he absolutely refused to accept it.
a. so b. but c. therefore d. and so
5. Everyone is ready for the discussion, ________ him.
a. however b. but c. so d. therefore
6. The first part of the test was easy; the second, ________, took hours.
a. therefore b. but c. so d. however
7. I tried my best in study;________, I cannot keep pace with Johnny.
a. therefore b. but c. so d. however
8. He has done nothing to prepare for the final examination, ______ played.
a. but b. so c. therefore d. and
9. Polar bears are beautiful animals; _______, they are wild and unpredictable in nature.
a. despite b. however c. so d. therefore
10. You do not have to be afraid of bear, _______ educating yourself about the dangers can help keep you safe. .
a. but b. so c. therefore d. although