Students shouldn’t be given so difficult a problem they can not work out.A. thatB. whichC.

发布时间:2020-08-17 14:24:56

Students shouldn’t be given so difficult a problem     they can not work out.
A. that
B. which
C. while
D. as

网友回答

A. that
B. which
C. while
D. as
解析:在定语从句中,当先行词被so/such修饰时用as引导定语从句。
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