1 . The survival rate of endangered animals is being improved __________ (由于) enhanced protection measures in their natural habitats.（根据汉语提示完成句子）

2 . T__________ __________ (多亏了) the kind-hearted public, we have raised enough money for the sick boy. (根据中英文提示填空)

3 . Marriages usually break down ___________ (由于) the shortcomings of both partners. (根据汉语提示完成句子)

4 . The firefighter was widely admired _________saving the child from the burning house, regardless of his own safety. (用适当的词填空)

5 . We admire our headteacher ________his kindness and hard work.（用适当的词填空）

6 . As we all know, the West Lake is remarkable ________her beautiful scenery. (用适当的词填空)

7 . She has always been honest with me, and I respect her ________that. (用适当的词填空)

8 . The heavry rain may account ________ the absence of so many students this morning. （用适当的词填空）

9 . The boss is annoyed________ him because he is often late for work.(用适当的词填空)

10 . Carelessness was responsible ________ the accident.
粗心是造成这次事故的原因。