问题

Miss Li asked a question, but it was ________ that nobody could answer it. [ ]
A: very diffcult
B: too diffcult
C: diffcult enough
D: so diffcult
B: too diffcult
C: diffcult enough
D: so diffcult
正确答案是:
同类题型
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The poor _______ man lived ______in a small house, and he often feels ______.