, and the problem will be worked out..

I think _________ necessary for students totake an interest in all subjects.

Rock music may _______nice to young people, but most old people can’t stand it.

The Yongle Bell(永乐大钟) in the Great Bell Temple is ________a man. [ ]

Excuse me, Mum. When can we have dinner —Not until it ▲ in half an hour.