Tony gets up very late in the morning, ______ he is often late for school.
| A．because | B．so | C．but | D．or |
Teachers should _____ their students to practice _____ English often.
A.encourage; speaking B.let; speak C.keep; speak
_____ of the teachers are women in our school.
A.Two third B.Two threes C.Two thirds
This machine is very easy to use . _____ can learn to use it in a very short time.
A.Somebody B.Anybody C.Nobody
There is _____ pollution in the world. We must stop it.
A. much too B.too much C. too many
—Where is your father?
— He Shanghai on business.
A. has gone to B. has been to C. has been in