按要求完成下列句子。
1.There are many busy roads in the city.(改为一般疑问句)
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2.The children must play football on the road.(改为否定句)
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3.We mustlook out for the traffic lightsfirst.(对划线部分提问)
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4.An old womanis crossing the road.(对划线部分提问)
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5.You can’t watch TV nowbecause it’s late. (对划线部分提问)
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6.keep, desk, tidy, I, must, my, clean, and (.)(连词成句)
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