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________ people are concerned about now is the Shanghai World Expo, which ________ start on May 1st.
| A．What; is due to | B．Which; is going to |
| C．That; is to | D．What; is about to |
They’d go with us, __________?
| A．wouldn’t they | B．didn’t they | C．hadn’t they | D．couldn’t they |
He’s posted the letter, _________he?
| A．isn’t | B．doesn’t | C．hasn’t | D．wasn’t |
The suit’s finished, __________?
| A．doesn’t it | B．isn’t it | C．haven’t you | D．hasn’t it |
Wait a minute, __________?
| A．shall you | B．will you | C．do you | D．don’t you |
Let us pass, _________?
| A．shan’t we | B．shall we | C．won’t we | D．will you |