but I am not sure that all of them are dashing about learning hang- gliding or sailing single-handed (7) the world. A. round       B. over        C. through      D. into

but I am not sure that all of them are dashing about learning hang- gliding or sailing single-handed (7)_________ the world.
A. round
B. over
C. through
D. into

Trả lời
Đáp án: A

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