Câu hỏi: I don’t know whether to accept the joboffer. It’s .................

A. a difficult decision

B. the difficult decision

C. difficult decision

Câu 1: The teacher..................... us how to do the experiment when the fire bell rang.

A. showed

B. shown

C. was showing

Câu 2: You can base your geographyassignment on ................ country – itdoesn’t matter which.

A. a

B. some

C. any

Câu 3: She..................some friends to her house for a party.

A. decided

B. agreed

C. invited

Câu 4: The teacher ............... us how to do theexperiment when the fire bell rang.

A. showed 

B. shown

C. was showing

Câu 5: I ........... want to be a practisingdoctor but now I’m more interested in research.

A. was used to 

B. used to 

C. would

Câu 6: While we’re working on the project ourboss ................ on a beach in Greece!

A. will sit 

B. will have sat

C. will be sitting