问题
选择题
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
答案
答案：B
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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
答案：B