The boy wanted to ride his bicycle in the street, but his mother told him _______.
| A．not to | B．not to do | C．not do it | D．do not to |
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. --- Thanks for your help, but can you do me one more favor, please?
--- ____, sir. What’s it then?
| A．Just a minute | B．It’s very nice of you | C．That’s all right | D．At your service |
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. ________each other for long , the two brothers decided to meet soon.
| A．Not having seen | B．Not seen | C．Have not seen | D．Not seeing |
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Tell John not to leave the house unless he________that the lights ______ .
| A．will make sure, turn off | B．makes sure; are turned off |
| C．will make sure; will turn off | D．makes sure; will be turned off |
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It was the training________he had at school________made him good jumper.
| A．what; what | B．what; that | C．that; that | D．that; which |
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It is difficult for any of us to eat better, exercise more, and sleep enough,________ we know we should.
| A．because | B．even if | C．unless | D．before |