9. Mary clapped her hand over her mouth _______ she realized what she had said.
| A．while | B．as soon as | C．suddenly | D．then |
相关试题
Urban crowdedness would be greatly relieved if fares ________ on public transport were more reasonable.
| A．offered | B．spent | C．paid | D．charged |
When people choose what college course to take, questions tend to be; what kind of
job am I going to get?
| A．不填，不填 | B．the，不填 | C．不填，a | D．the, the |
They soon realized that, , the situation would get worse.
| A．unless dealing with it carefully | B．if not carefully dealing with it |
| C．unless carefully dealt with | D．if dealt not carefully with |
I didn’t choose any of the three offerings, because I found of them satisfactory.
| A．neither | B．either | C．all |
D．none |
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