I think that something has to be done to stop the air from being polluted, ______ ?
| A．doesn't it | B．don’t I | C．don't they | D．haven't they |
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The coach,
because of the driver’s carelessness, was __________ and crashed over the cliff on such a cold December morning.
| A．in support | B．out of control |
| C．in charge | D．at the mercy |
--What do you want to do next ?We have half an hour until the football game.
-- .Whatever you want to do is fine with me.
| A．It just depends | B．It’s up to you | C．All right | D．No wonder |
-Did you have any trouble with the customs officer?
-________ to speak of.
| A．No | B．Nothing | C．None | D．Neither |
We ________ last night , but we went to the concert instead.
| A．must have studied | B．might study |
| C．should have studied | D．would study |
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