They_____us since five o'clock this morning.

They_____us since five o'clock this morning.
(A)are helping (B)have beng helping (C)have beng helped
(D)have helped

yjhmqj 1年前已收到2个回答举报

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ypwq6a0tm4aab 幼苗

共回答了21个问题采纳率：95.2% 举报

因为是从今天早上五点到现在还在帮助我们
而且有since 提示
所以用现在完成进行时

1年前

2

幸福的眩幼苗

共回答了11个问题举报

B

1年前

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你能帮帮他们吗

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