4. I'm sorry,I'm not        (有空的) .I have too many things to do this weekend.

3. Sorry,I can't join you. Maybe        (另外的) time.

2. Jeff can't go to the party because he has the        (流感) .

1. I have an exam on Monday,so I must        (准备) for it.

10. not... until       

 9. hang out       

8. go bike riding        

 7.  go to the party         

6.  too much homework       

 5. another time