Measures have to be taken to teach young people how to ______ themselves both in family and in school. They don’t know the basic manners.
The old man used _____ in front of his house and he has got used to _______ like that.
You will ______ sooner or later if you keep working like that.
In the USA, the students who study business is more than _______ those who study agriculture.
—— Ann is in hospital. ____ Oh ,really? I ______ know. I ______ go and visit her.
Mr. Brown, ______ chairman of the trade union, will visit our factory in _____ month of May.