用适当的介、副词填空。

1．Thank you ____________ your book．

2．Jim is standing ____________ front of Tom’s home and waiting ____________ him．

3．--Is your mother at home?   

--No，she is ____________ work．

4．They are going to take us  ____________ their city．

5．Can you choose the best answers ____________ the following questions?

6．At Spring Festival we clean our house and sweep ____________ bad luck．

7．--What are you going to do ____________ the weekend?

--We’re going to walk ____________ the Great Wall．

8．____________ Saturday morning，she is going to have a piano lesson．