Câu hỏi: I and Kenny______ pen pal friends since I_______ Singapore.

A. are/ visit

B. were/ have visited

C. were/ visited

D. have been/ visited

Câu 1: The first color TV _____________ in 1928.

A. produce

B. is produced

C. was produced

D. produced

Câu 2: _________, we couldn’t make out the gist of the passage.

A. Due to Romeo’s carefully explanations

B. Though carefully explained by Romeo

C. Carefully as Romeo explained

D. As Romeo carefully explained

Câu 3: The students got the librarian_________ books for them.

A. buying

B. to buy

C. buy

D. bought

Câu 4: Nowadays, most people rely ________ the mass media as their main source of information.

A. on

B. in

C. to

D. with

Câu 5: I don't mind ______ you ______ the washing up.

A. helping/ doing

B. help/ do

C. to help/ to do

D. helping/ do

Câu 6: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a