2 . 毫无疑问，我们应该不遗余力提高人们的环保意识。
________ we should spare no efforts ________ of environmental protection.

3 . She brought her three friends to the party, none of ________I had ever met before. (用适当的词填空)

4 . The bay ________water lilies quietly floated is now a harbor for motor boats. (用适当的词填空)

5 . On our way to the house, it was raining ______ hard that we couldn’t help wondering how long it would take to get there. It was in the middle of Pearl City. (用适当的词填空)

6 . It is no use __________(complain) without taking any action. (所给词的适当形式填空)

7 . —What was the party like?
—Wonderful. It’s been years _______ I enjoyed myself that much.

A．after

B．before

C．when

D．since

8 . 由于Hellen摸到了语言的门道，她渴望学习更多语言，并尽可能多运用。(汉译英)
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10 . 研究表明，三分之二以上的年轻人发现在网上交友比在现实生活中容易。(汉译英)
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