— Show me your permit, please.
—Oh, it's not in my pocket. It_______________.
| A．might fall out | B．could fall out |
| C．should have fallen out | D．must have fallen out |
相关试题
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
| A．turn | B．turning | C．turned | D．having turned |
The idea puzzled me so much that I stopped for a few seconds to try to _______.
| A．make it out | B．make it off | C．make it up | D．make it over |
With exports ______ a big role in its economic growth, China has been affected by the current financial storm.
| A．playing | B．to play | C．played | D．play |
— How ab
out buying Sam a mobile phone? After all, he isn’t a boy any more.
—I think it necessary, for we sometimes want to make sure if he _______ home for dinner.
| A．will come | B．comes | C．has come | D．would come |
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