选出划线部分单词的汉语意思。What’s this?A.那个 B.什么 C.这个
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