Tom cleans his room改成一般疑问句 还有My sister is a teacher.

问题描述:

Tom cleans his room改成一般疑问句 还有My sister is a teacher.
This is her umbrella.
Sally is doing her homework.
These are their tickets.
Miss green comes from the U.S.A.
That is our classroom.
都改成一般疑问句哦!

Does Tom clean his room?
Is this her unbrella?
Is Sally doing her homework?
Are these their tichets?
Does Miss Green come from USA?
Is that our classroom?