在下列句子中划线部分A、B、C、D中，只有一处错误，找出错误并改正
He likes quarrel with other people.
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She wants to be a football player after she grow up.
She is taller than any other girls in her classroom.
－Must we go there now? －No, you mustn't.
根据汉语意思在空格内填入适当的词，使句子完整
你认为有必要告诉你父母亲吗？
Do you think ________ ________ ________ ________ your parents?
事实上，他昨天8点就到家了。
________ ________, he ________ ________ at 8:00 yesterday.
明天将有多少个参观者来？
How many ________ ________ ________ tomorrow?
假如你感到身体足够好，你就可以看电视了。
If you ________ ________ ________, you may ________ ________.
瞧！他正在和一名警察争吵！
Look! He ________ ________ ________ a policeman.
用括号内所给动词的适当形式填空
Look! How happily the children ________ (laugh)!