---Who cleaned the blackboard yesterday, Dick?
---John ____.
| A．clean | B．does | C．did | D．is |
相关试题
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.
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