Advertisements（广告）are like air-they are_______.
| A．something | B．everything |
| C．everywhere | D．somewhere |
I don’t know if it _______ tomorrow. If it _____, we will go out for a picnic.
| A．will rain； won’t rain |
| B．rains； doesn’t rain |
| C．rains； won’t rain |
| D．will rain； doesn’t rain |
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 |