Câu hỏi: Scientists sent ............ expedition to ............ Mars during .......... 1990s.

A. an/  X/  the

B. an/  the/  the

C. X/  X/  the

D. X/  X/  X

Câu 1: Jason's father bought him ............ bicycle that he had wanted for his birthday.

A. a

B. an

C. the

D. x

Câu 2: Phil can't go to .......... movies tonight because he has to write .......... essay.

A. X / the

B. the/  X

C. the/  the

D. X/  X

Câu 3: Last night there was .......... singing outside my house.

A. a

B. an

C. the

D. x

Câu 4: We watch television after .................. dinner.

A. a

B. an

C. the

D. x

Câu 5: What did you eat for........... breakfast this morning.

A. a

B. an

C. the

D. x

Câu 6: Mel's grandmother is in........... hospital,  so we went to visit her ............  last night.

A. the/  X

B. X/  the

C. the/  the

D. X/  X