1 . ________(咬) by the snake in the bush, Susan was sent back to the camp. (根据汉语提示拼写单词)

2 . Most of us________ (呼吸) out heavily when the operation was over and the patient was out of danger. (根据汉语提示单词拼写)

3 . You should have a ________ (均衡的) diet, and you should eat fruit every day, and more vegetables. (根据汉语提示单词拼写)

5 . The book ________ (base) on his own experience is a great success. （所给词的适当形式填空）

6 . She was lying in her front garden ________ (流血) very heavily. (根据汉语提示单词拼写)

7 . ________(责备) for the breakdown of the school computer network, he was in low spirits. (根据汉语提示单词拼写)

8 . The house _______(建立) on a rock. (根据汉语提示完成句子)

9 . ________ everybody enjoys fresh cut flowers around his house, few people know how to keep them for as long as possible.

A．If

B．While

C．Because

D．As