Mr Wang isn’t here , I think he __________ Shanghai .
| A．went | B．went to |
| C．has gone to | D．has been to |
--- Lily is ill in hospital .---Really ? I _____ know she was ill .
| A．don’t know | B．know | C．knew | D．didn’t know |
The task is so hard for
e . I don’t know _______________.
| A．what I can do | B．how to do | C．what to do | D．both A and C |
Good books help us ___________ a whole new world to me .
| A．turn up | B．look up | C．get up | D．open up |
There is no air _______ water on the moon .
| A．and | B．but | C．or | D．with |