nofeelbody
幼苗
共回答了16个问题采纳率:81.3% 举报
It's impossible for him to finish the difficult task in such a short time,________ _________ 知道是isn't it,为什么,impossible是否定呀,应该用is
否定前缀不是否定词!
类似的否定前缀不是否定词的.
un-; in-; dis-; im-; ir-
unable,invisible,disappear; impossible; irregular
否定词有几个:
not,never,hardly,scarcely,rarely,none,no,nothing,nobody,neither,seldom,little,few等
当句子中含有以上否定词时,才是否定句的.
又如:
He is unable to speak English,isn't he?
1年前
6