He made another wonderful discovery, ____ of great importance to science.
| A．which I think is | B．which I think it is | C．which I think it | D．I think which is |
Take care not to get your shoes ______ in mud．
| A．wet or covered | B．to be wet or covered |
| C．to be wet or covered | D．wet or be covered |
---Where will you start your work after graduation ---at home or abroad?
--Mm, it’s not been decided yet．I ______ continue my study for a higher degree．
| A．need | B．must | C．would | D．might |
---Hi, Lucy．Have you heard of any good news about Frank recently?
---Yeah．She ____ have done better．She has been admitted to one of the top-ten universities in the States．
| A．shouldn’t | B．wouldn’t | C．needn’t | D．couldn’t |
---Is this our new office, Jim?
---Yes, and ______．
| A．that’s all right | B．it’s ok |
| C．after you | D．you can find it |
--- I’m not good at singing, you know.
--- . It’s just for fun.
| A．All right | B．No problem | C．Come on | D．Cheer up |