10.“How long have you been here?” “_______ the end of last month.”A.In B.ByC.At D.Since

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10.“How long have you been here?” “_______ the end of last month.”A.In B.ByC.At D.Since
10.“How long have you been here?” “_______ the end of last month.”
A.In B.ByC.At D.Since

10.“How long have you been here?” “_______ the end of last month.”A.In B.ByC.At D.Since
D
how long在此是用来对动作所持续的时间长度提问,即询问的是时间段,“since+(过去的)具体时间”就是表达这个概念.

时间段的 选D

d.

B