1 . 我们应该早睡早起，这样我们才能精力充沛地上课。(一句多译)
①We are supposed to go to bed early and get up early ________________.
②We are supposed to go to bed early and get up early ________________．
③We are supposed to go to bed early and get up early ________________．

5 . He angled his chair ________ ________ he could sit and watch her.
他斜移了椅子，以便坐着观察她。

6 . I seldom have time for fun but I try to work hard_________（以便）I can make more money for my family. （根据汉语提示完成句子）

7 . 我父亲65岁时开始学电脑，以便与时俱进。（目的状语从句）
My father began to study the computer at the age of 65, ________ ________ ________ ________ ________ ________ ________ the times.

8 . My father always has an umbrella in his backpack whenever he goes out ________ it rains.
以防下雨，我爸爸出门的时候总是放一把雨伞在背包里。

9 . 你度假时要将驾照带着，以防需要租车。
You should take your driving license on holiday, ________ .

10 . 为了避免堵车，他很早就离开了。（一句多译）
（1）____________________ he could avoid the traffic jam, he left early.
（2）He left early ___________________ he could avoid the traffic jam.
（3）He left early ___________________ avoid the traffic jam.
（4）___________________ avoid the traffic jam, he left early.