Question

选词填空并用适当的形式：

accident, believe，rag, decade, develop, surface, explode, float, solid，account, force , spread

1. They thought it was ___________ for them to walk so far in one day.

2. Henry was looked down upon by the waiters, for he was in ________.

3. He has made a great plan of two _______ for his son when he was born, and then he will be 20 years old.

4. We wondered whether he did it on purpose or by ________.

5. With the ________ of our country’s economy, people's living standard has been greatly raised.

6. More than 70% of the earth’s _______ is covered by water.

7. During World War II, two atomic bombs _______ in Japan, killing a large number of people.

8. The ____________ of gravity makes things fall to the earth.

9. They __________ the canoe out into the middle of the river.

10. The bad weather _________ for the long delay of the plane.

Answer 1

 1. unbelievable   2. rags   3. decades  4. accident   5. development

 6. surface   7. exploded    8. force    9. floated    10. accounted