题目内容：

请根据要求改写下列句子，每空一词。

1.My mother does the housework in my family.（改为否定句）

My mother______the housework in my family.

2.Shall we visit the Great Wall this Sunday？（保持句意基本不变）

How________the Great Wall this Sunday？

3.They often chat with each other in the playground.（用 now代替often改写句子）

They_________with each other in the playground now.

4.There are some white shirts on the bed.（改为一般疑问句）

____there_____white shirts on the bed？

5.The girl in front of the classroom building is my sister。（对划线部分提问）

_______is your sister？