4. 我们把灯打开，以便看看它是什么。

We turned on the light           .

3. 即使大学毕业了他也应该继续学习。

          ，he should still continue to learn.

2. 有一点是清楚的：它的优点对所有人来说是显而易见的。

          its advantages are immediately apparent to all.

1. 我们必须种树的原因是它们能为我们提供新鲜的空气。

           is that they can supply fresh air for us.

5. It is a pity that the machine        (出故障) at this busy hour.

4. The car went        (失去控制) and crashed over the cliff.

3. After three hours of bitter fighting,an entire enemy column (队伍)

       (摧毁) .

2. Someone whose handwriting        (和.. 一样) yours leaves them on your desk.

1. It is not boring,       (相反地) we are greatly interested.

8. He is a        (有争议的) figure in the art world.