this is ___to students of English A.a useful advice B.useful advice C.one of useful advices D.a pi
题目
this is ___to students of English A.a useful advice B.useful advice C.one of useful advices D.a pi
this is ___to students of English
A.a useful advice B.useful advice
C.one of useful advices D.a piece of useful advice
答案上说D,我想问问为什么不选B
答案
advice是不可数,前面不能用冠词,也不能直接用,所以不选B
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