1¡¢__________ when we lost what we had did we realize how much we loved it.

2¡¢Only then__________(do) they realize how much damage had been caused.

3¡¢No sooner        Mo Yan stepped on the stage than the audience broke into thunderous applause.

4¡¢Never before__________she seen anybody who can play tennis as well as Robert. 

5¡¢At the foot of the mountain__________(lie) a small village.

7¡¢It was when I got back to my apartment__________I first came across my new neighbors.

8¡¢It’s not doing the things we like, but liking the things we have to do__________makes life happy.