Câu hỏi: Since the first space mission many communication satellites ..........................

A. was launched

B. are launched

C. have been launched

D. had been launch

Câu 1: The tablets .............. with food.

A. must take

B. must be taken

Câu 2: Tropical fruits .................... by farmers in the lowland region.

A. are grown

B. grown

C. are growing

D. grow

Câu 3: It .................. by next Friday.

A. has to be done

B. has been done

Câu 4: Their house .............. last week.

A. was bought

B. has been bought

Câu 5: She complains that she ................................ headaches.

A. has frequently had

B. has been frequently

C. has frequently

D. had frequently been had

Câu 6: They are ........................ by the police at themoment.

A. questioned

B. being questioned