We should consider what use can _____ the books.

Itis reported that the police will soon ____ the case of two missing children.

Do you think I can wear sports clothes for hiswedding—No, sports clothes are not______.

are about one million words in English. ________, most people use only about ten thousand of them.

Hi,Tony! What are you doing—- I’m sending ______ e-mail ______ my grandfather.