根据句意,用括号中所给词的适当形式填空。

1.Computers are used by people for ______ problems. (do)

2.Spaceship ______people have reached other parts of the universe. (with)

3.Britain is only 30 kilometers away from _____ .  (French)

4.I think English is _____ than maths. (important)

5.The Great Wall is over six ______kilometers long. (thousand)

6.The hat was ______of silk. (make)

7.The moon ______round the earth . (travel)

8.Sheep are ______by farmers for producing wool and meet. (keep)

实木地板的特性有（）。

A.环境调节作用

B.保健作用

C.环保作用

D.自然视觉感觉强

E.缓和冲击作用

F.可循环利用