–Is it possible for David to win first prize in the running race?
--______. He needs to practice more.
| A．Bad luck | B．I hope not |
| C．I’m afraid not | D．I don’t agree with you |
There are fewer and fewer tigers in India. The situation will continue ______ humans stop hunting them for their fur and bones.
| A．if | B．unless | C．because | D．since |
–Hi, Jack. Nice to meet you here in Taizhou!
--Me too. But I _______ you were in Shanghai
| A．think | B．thought |
| C．am thinking | D．will think |
—I’m tired out these days.
--Well, you’d better keep a _____ between work and play.
| A．promise | B．diary | C．balance | D．secret |
The energy from the sun and wind is very cheap and it will never .
| A．come out | B．put out |
| C．carry out | D．run out |