_______ the destination, he will have been walking for about three hours. A. When John will get B. By the time John gets C. After John has got D. until John is getting

_______ the destination, he will have been walking for about three hours.

A. When John will get
B. By the time John gets
C. After John has got 
D. until John is getting

Trả lời

Chọn B

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