1. 从方框中选择合适的单词并用其适当形式补全句子，其中有两项多余。

frustrate; hire; abuse; theft; expense; supervise

1. （1） Seeing Miss Sun, Helen began to cry and expressed her at her mistakes in the competition.
3. （2） The children finished all the tasks under the of their teacher.
5. （3） If you really want to visit that island next week, I suggest that you a car ahead of time.
7. （4） It's said that George is related to a(n) of club funds that happened last Monday.