Câu hỏi:  I’ll phone you ……………….. I come.

A. while

B. until

C. as soon as

D. because

Câu 1:  He is proud of his ……….

A. succeed

B. success

C. successful

D. successfully

Câu 2: Tay Bac university ……. in Son la town for two years.

A. was built

B. is built

C. have been built

D. has been built

Câu 3: Chewing gum ………… in Sweden in 1993.

A. was invented

B. is invented

C. has been invented

D. invented

Câu 4: To my ………., John is very good at Vietnamese.

A. amazing

B. amazed

C. amaze

D. amazement

Câu 5:  If he worked harder, he ………….

A. will be promoted

B. will have been promoted

C. had been promoted

D. would be promoted

Câu 6:  I ……… a taxi so I came on the bus.

A. couldn’t find

B. don’t find

C. haven’t found

D. I have found