Sally _______ her homework in the evening.
| A．doesn’t | B．doesn’t do |
| C．don’t do | D．don’t |
___ the teachers in their school is about 200 and one fourth of them are ____ teachers.
| A．A number of; women | B．A number of; woman |
| C．The number of; women | D．The number of; woman |
— When shall we go?
— It hasn’t been decided yet. It ____ the weather.
| A．begins with | B．leads to |
| C．depends on | D．thinks of |
I don’t know _____ he will come or not. _____he comes, I’ll tell you.
| A．if; If | B．whether; Whether |
| C．whether; If | D．if; Whether |
We ___ use mobile phones when the plane takes off.
| A．may not | B．shouldn’t |
| C．needn’t | D．mustn’t |
He told us where tomorrow morning.
| A．meet | B．meeting | C．to meet | D．met |