1. 用括号内单词的正确形式填空。

1. （1） They asked her to be (mercy) to the prisoners.
   
3. （2） The children waited patiently in (expect) of the magician.
   
5. （3） Our conversation ended (abrupt) when George burst into the room.
7. （4） A woman was singing (merry) in the next room.