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- 搜题干
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问答题
Directions: please read the following sentences and then choose the best answer from the four choices marked A, B, C, and D. (每题20分，共100分)____________alone, they can get themselves into all sorts of trouble very quickly.
Directions: please read the following sentences and then choose the best answer from the four choices marked A, B, C, and D. (每题20分，共100分)____________alone, they can get themselves into all sorts of trouble very quickly.
A、Leaving
B、to leave
C、Left
D、Having left
答案：
Left
