把下列句子改成一般的疑问句,并作肯定和否定回答!1.My pencils are on the desk.2.The cat is in the tree 3.The bebroom is clean 请做题,
问题描述：
把下列句子改成一般的疑问句,并作肯定和否定回答!
1.My pencils are on the desk.2.The cat is in the tree 3.The bebroom is clean 请做题,
答
1.Are my pencils on the desk?
Yes,they are/No,they aren't.
2.Is the cat in the tree?
Yes,it is/No,it isn't
3.Is the bebroom clean?
Yes,it is/No,it isn't