题目内容
He tired his best to solve the problem, ________ difficult it was.
[ ]
A.however
B.no matter
C.whatever
D.although
答案:A
解析:
解析:
|
从结构上看,后半句需要一个状语从句,从意思上只有A正确。 句意:“无论那个问题有多难,他都尽力去解决。” |
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