Directions: Complete the sentences on Answer Sheet 2 by translating into English the Chinese given in brackets.

　　87. But for his help, I (我不可能这么早完成).

　　88. I don’t mind your (延期做出) the decision as long as it is not too late.

　　89. Over a third of the population was estimated (无法获得) to the health service.

　　90. It is no good waiting for the bus, (我们不妨走回家吧).

　　91. Last week, Tom and his friends celebrated his twentieth birthday, (尽情地唱歌跳舞).