问题

The sand in the river is increasing these years.We must to protectthe environment.

A:take measures
B:do some work
C:do something
D:make some rules

正确答案是：

同类题型

下列各句中，没有语病的一句是

Freemedical treatment in this country covers sickness of mind as well as ________sickness.

Tom Hopper got his work _____ in the filming industryfor his film had been crowned best picture at the Oscars

I am very ____________ about expressing my opinions in public in case I may make mistakes.

Someone called you just now.—I know. But I was busy then. When I called back, there was no .