Câu hỏi:  “The Wall” ….. when all the members were students.

A. founded

B. was founded

C. has been founded

D. have been founded

Câu 1: Chewing gum ………… in Sweden in 1993.

A. was invented

B. is invented

C. has been invented

D. invented

Câu 2: She can’t talk to you now, she …………

A. study

B. is going to study

C. is studying

D. will studied

Câu 3: 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 4:  We can’t find a place ……… 

A. live

B. to live

C. living

D. lived

Câu 5: I was late because I ……… the bus.

A. left

B. lost

C. missed

D. forgot

Câu 6:  I’ll phone you ……………….. I come.

A. while

B. until

C. as soon as

D. because