1 . 塑料需要几百年才能分解，但纸张分解所需的时间则要短得多。
________, but much less time for paper.

2 . 为了远离这些病毒的危害，建议我们应该养成健康的习惯。(it作形式主语)
To stay away from the harm of these viruses, ________________.

3 . 最重要的是，要想成为一名聪明的在线学习者，需要自律才能抵制所有在线干扰。
Most importantly, ________________ towards a smart online learner.(it takes sth to do)

4 . it作形式主语
教材原句：However，it is important to remember that they are only meant for guidance.
仿写：一个人做点好事并不难，难的是一辈子做好事。
　___________________   a bit of good, but it’s a struggle to do good for a lifetime.

5 . 据宣布，这家公司的首席负责这项慈善事业。
________________the chief of the company is in charge of the charity.

6 . 据估计全市人口大约有一百万。(it作形式主语)
________________________ the population of the whole city is about one million.

7 . __________________ the play should be put on again.
根据要求戏剧应该再上

8 . 我发现要拒绝他的邀请不是很容易。
I find _______ not so difficult _______ _______ _______ his invitation.

9 . 要真正理解一个单词，光“语言通”不够，还得“文化通”。(take) （汉译英）

10 . You oughtn’t to have gone out without a coat yesterday. It isn’t surprising ________ you caught a cold.

A．whether

B．why

C．how

D．that