根据图片补全对话。(18分)A．How old are you?B．This is my son.C．My name is Gao Wei.
Mary often goes to school _________ his father’s car .
You must wait ________ the green light .
Do you help you mum _______ the housework?
Is your little sister getting up? _____No, she ________ .
He _______ never late for school . A.be B.is C.are
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