Câu hỏi: This vertical section of the soil shows four basic soil layers.

A. visible

B. important

C. necessary

D. horizonal

Câu 1: The next day the union voted to begin an indefinite strike.

A. make

B. end

C. start

D. light

Câu 2: He put on his best clothes for the party.

A. wear

B. take off

C. turn off

D. dress

Câu 3: Mr. Smith's new neighbors appear to be very generous.

A. mean

B. pleasant

C. mean

D. easy-going

Câu 4: The temperature soared to above 100 degrees in the shade.

A. below

B. up

C. over

D. around

Câu 5: The best time to visit is during the dry season, from October to April, when the hard forest rain is over.

A. wet

B. engaging

C. obvious

D. cordial

Câu 6: I think we've chosen the right person to lead the expedition.

A. alright

B. left

C. wrong

D. true