9.　　　 　I hope you ________ (be) happy while you ________ (be)here.

8.　　　 　He ________(be) better today than he ________ (be) yesterday.

7.　　　 　Edison placed a big mirror behind the lamps so that the doctor ________ (operate).

6.　　　 　He ________ (leave) as soon as he ________ (drink) his coffee.

5.　　　 　They started as soon as they ______ (receive)my telephone.

4.　　　 　I ________ (not know) it until you ________ (tell) me.

3.　　　 　When Tom’s mother came home, little Tom _______ (cry) loudly.

2.　　　 　He is hungry, because he ________ (not have ) his breakfast yet.

1.　　　 　It ________ (be) nearly two years since we went to the party last.

20.He ran as fast as possible ________ he could reach school on time.

A.　　 in order to　　 B. so as to　　　 C. when　　　 　　D. so that