Mr. Smith often goes fishing _______ his free time.
| A．of | B．in | C．at | D．to |
We tried to find a table for seven，but they were all.
| A．taken up | B．kept away |
| C．given away | D．used up |
Mum is coming. What present ___ for your birthday?
| A．you expect she has got | B．you expect has she got |
| C．do you expect she has got | D．do you expect has she got |
A hard-working man ______ become a great scientist, but a great scientist _______ be a hard-working man.
| A．can’t; can | B．may not; must |
| C．can’t; must | D．may not; can |
We work together to achieve our common purpose: _________ world that is safer, cleaner and healthier than __________ one we are living in.
| A．the , / | B．a , / |
| C．the , the | D．a , the |
根据句意和汉语注释，写出单词的正确形式。China is ______ (富有)and more powerful than ever before.
Everyone is _____________(料想) to know the rules.
Ren Rong has devoted himself to cultural _________(对话) between China and West
The researchers hope their new ______(发现) can be used to make objects that are difficult or impossible to replace.