6. I must ______________ who broke the glass.

经典句型再现

5. How’s Sam ______________ at university?

4. She spends two hours ______________ every day.

3. I ________ go to bed _________ my mother came back.

2. Can you ______________the river

1. They ______________ the forest at last.

1. He is funny. _________ ________ whenI see him, I’ll laugh.

2. He is sure _________ come.

3. How are you _________ _________ with your classmates?

4. I always _________ _________my mother when I see the photo.

5.If you don’t know how to use the word, you can _________ _________ your notebook.

6. The food isn’t good enough, but at _________it is cheap.

25.　　 prepare for ________________

24.　　 an exchange student ________________

23.　　 at most ________________