Ⅰ.单句语法填空
1．It rained for two weeks on end，completely ruining (ruin) our holiday.
2．What had seemed impossible seems a distinct possibility (possible) now.
3．Although that big earthquake did great damage to this city，it was soon rebuilt from the ruins.
4．The government has issued a warning (warn) that the fish may not be fit to eat.
5．When they heard the bad news，they all looked sadly (sad) at the master.
6．—Don't throw the cigarette about for the grass catches fire easily.
—What should we do if it is on fire?
7．I can't understand the humor in the English joke.After all，I'm a foreigner and know little about British culture.
8．There is no possibility that we will finish the work in such a short time.
9．The scene was terrifying and the boys there were all terrified．(terrify)
10．He put out the cigarette immediately he heard his father coming back.
