It was ____problem that ____ of the students could work it out .A_英语解答

It was ____problem that ____ of the students could work it out .
A.so hard a ;a few
B.so hard a ;few
C.such hard a;few
D.such a hard; a few

人气：100 ℃　时间：2019-11-18 12:09:18

解答

B
so + 形容词+ 不定冠词+ 名词中心词“如此的.”
so hard a problem= such a hard problem
few 表否定, 符合句意
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