词汇。

1.It usually takes me half an hour __________ (walk) to school.

2.The government should pay much attention to the __________ (increase) population.

3.The grand piano takes up too much __________ (room).

4.I think Beijing is one of the ___________ (beautiful) places in the world.

5.No one __________ (know) when he will be back.

6.There are sixty m__________ in an hour.

7.Today we rarely(很少) see s__________ pouring from chimney.

8.Women commit (犯) far fewer c__________ than men.

9.All of us should put r__________ into dustbin (垃圾箱) to protect the environment.

10.It is very impolite for you to fail to keep an a__________.

(用动词的适当形式填空) No one _______ (know) what will happen next．