Câu hỏi: We all believe that a happy marriage should be _______ mutual love.

A. confided in

B. concerned with

C. based on

D. obliged to

Câu 1: I am not used to the cold weather here, so I need to have a heating system ______.

A. installed

B. serviced

C. developed

D. repaired

Câu 2: The new sports complex ______ will accommodate an Olympic-sized swimming pool and others including fitness center, and a spa, to name just a few.

A. supplies

B. facilities

C. categories

D. qualities

Câu 3: I have lived near the airport for so long now that I’ve grown ________ to the noise of the airplanes.

A. accustomed

B. unconscious

C.  familiar

D. aware

Câu 4: I may look half asleep, but I can assure you I am ______ awake.

A. broad

B. well

C. full

D. wide

Câu 5: They were among the first companies to exploit the ______ of the Internet.

A. potential

B. prospect

C. possibility

D. ability

Câu 6: The operation of the newly constructed plants is likely to lead to _________ environmental consequences.

A. far-reaching

B. far-off

C. far-gone

D. far-flung