Câu hỏi: Alex did not do very well in class............ 

A. therefore he was a good student

B. because he failed to study properly

C. although he was not hard-working

D. as long as he had studied badly

Câu 1: It takes him thirty minutes to go ...........every day. 

A. working by a bus 

B. working on bus

C. to work with bus

D. to work by bus

Câu 2: He agreed to sign the contact                   

A. so he didn’t know much about that company

B. because he didn’t know much about that company’s director

C. although he didn’t know much about that company

D. in spite he knew much about it

Câu 3: She regretted to tell him that.............

A. she was leaving the tickets at home

B. the tickets at home would be left 

C. she would have left the tickets at home

D. she had left the tickets at home

Câu 4: When the film finishes, ............

A. will we have to leave

B. we have left 

C. we had to leave

D. we will have to leave 

Câu 5: Having been delayed by heavy traffic,           

A. it was difficult for her to arrive on time

B. her being late was intolerable

C. it was impossible for her to arrive on time

D. she was unable to arrive on time

Câu 6: In bacteria and other organisms, ............

A. it is the DNA that provides the genetic information

B. which is the DNA that provides the genes

C. the DNA providing the genetic information

D. the DNA that provides the genetic information