Câu hỏi: High in the sky a _____ of birds was flying southward.

A. pack

B. swarm

C. flock

D. crowd

Câu 1:  The plain occupies the west, south and central parts of the continent, though considerable variations are to be found over so ______ an area.

A. expensive

B. expansive

C. extensive

D. defensive

Câu 2: As the storm drew nearer, black clouds were _______ over the sky.

A. wondering

B. gathering

C. picking

D. watering

Câu 3:  I usually listen to the weather _____, though I have little faith in it.

A. notice

B. warning

C. announcement

D. forecast

Câu 4: Spies may have a number of _____ names and papers.

A. artificial

B. synthetic

C. false

D. imitation

Câu 5: Why can’t you do this small _____ for me? I’ve helped you often enough in the past.

A. demand

B. effort

C. favour

D. influence

Câu 6: My petrol tank was empty so I pulled into a garage to ______.  

A. fill up

B. top up

C. speed up

D. blow up