问题补充:
She wrote a month ago, we’ve heard nothing.
A. since when
B. before which
C. since that
D. after which
答案:
(答案→)A. since when
B. before which
C. since that
D. after which
解析:此题答案选A,其中when 相当于 a month ago。若改为 and since then 也不可以。
时间:2019-10-17 00:06:29
She wrote a month ago, we’ve heard nothing.
A. since when
B. before which
C. since that
D. after which
(答案→)A. since when
B. before which
C. since that
D. after which
解析:此题答案选A,其中when 相当于 a month ago。若改为 and since then 也不可以。
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