－How many workers are there in your factory?
－______ the workers in my factory_______ over two thousand .
| A．The number of , is | B．The number of , are |
| C．A number of, is | D．A number of , are |
An old man was found ______ in his house. Luckily, he was taken to hospital in time.
| A．dead | B．die | C．dying | D．death |
The old scientist devoted most of his time __________ the space science.
| A．develop | B．to developing |
| C．to develop | D．developing |
—Excuse me, Mum. When can we have dinner?
—Not until it in half an hour.
| A．is prepared | B．will be prepared |
| C．had been prepared | D．was prepared |
— Do you know whose magazine is it?
— I think itbe Lily’s, for we can find her name on the cover.
| A．can | B．might | C．could | D．must |
I believe her acting skills will become better in the future.
| A．a lot of | B．much more |
| C．even more | D．far |