They should not allow in this street. It’s too narrow. [ ]

Who ______ it be that is singing in the next room— It _______ be Lucy, but I am not sure.

I’ve become good friends with several of the students in my school________I met in the English speech contest last year.

Please take good care of the books ______ from the library. If they are lost, you’ll have to payfor them.

下列句子中加点的词语运用不恰当的一项是（ ）