4. 他逐题检查。

He_______　 _______the exercises one by one.

3. 我从游览了很多漂亮的地方和经历了不同的文化中得到了乐趣。

I have_______ _______ _______ _______ _______ visiting so many beautiful places and experiencing different cultures.

2. 无论谁违背这些规则都要受到惩罚。

Whoever_______ _______ _______ _______　 will be punished.

1. 我们在远处能看到大坝的建筑工地。

We can see the construction site of the dam _______ _______ _______.

5. Though this area is rich in natural resources, they will be used up soon if　 _______ (exploit) too much.

4. How about the two of us _______ (take) a walk down the garden?

3. I _______ (stick) for an hour on my way home this afternoon.

2. I’m sorry but you are not forbidden _______ (play) here.

1. The headmaster is now giving a wonderful lecture _______ (surround) by his students.

4. For humans and other creatures that live _______ by day, the night could almost be another planet.