____ she came in,i was writing a letter A when B while C sin

____ she came in,i was writing a letter A when B while C since D where
cyzxfmk 1年前 已收到1个回答 举报

duyanghua 幼苗

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A
题意:她进来时,我正在写信.

1年前 追问

4

cyzxfmk 举报

____ there is no rain,it's difficult to plant trees A where B when C which D How 到底选 A,还是B?? 就这一题了!!好了就采纳!~(≧▽≦)/~啦啦啦 今天晚上做好!

举报 duyanghua

B when在此引导时间状语从句,但有条件的意义。 题意:如果没有雨水,植树不有点困难了。
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