下列句子中各有—处错误，请找出并改正
【小题1】— Is Mr. Brown driving here?
— I’m not sure. He must come by train.
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【小题2】— The sports shoes must be Linda’s.
— No, they mustn’t be. They’re too small for her.
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【小题3】Shall you help me to carry the box upstairs?
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【小题4】If you may go, at least wait until the storm is over.
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【小题5】What will I get for dinner?
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【小题6】I promised that I should do my best.
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【小题7】You don’t have answer that question.
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【小题8】The child is too young. He may not take care of himself.
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【小题9】It is cold outside. You would better put on your coat.
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【小题10】— Mom, may I have a pear?

— Of course. But you can wash your hands first.
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