The policeman told the boys ________ in the street.

A. not play

B. not to play

C. not playing

D. to not play

根据句意，用括号中所给单词的正确形式填空。

1.The policeman told the boys _________________(not play) in the street.

2.There           (be) many changes in China since 1987.

3.Have you been to Hong Kong __________ (recent)?

4.The           (hunt) kill some animals in order to get their fur.

5.My little sister is old enough to look after           (she).

6.When you catch a cold, you always feel _________(comfortable).

7.Nothing is ___________(possible) if we put our minds into it.

8.Birds can find food _______ (easy) here.

9.It was _______ (fog) yesterday. We couldn’t see each other in one metre.