问题

In recent years the environmental pollution has been _________ than before.

A:so serious
B:serious
C:more serious
D:too serious

正确答案是：

标签： environmental , recent , years

同类题型

Don’t play in the street. It’s not ________ .

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My home is nearsea and far from Washington.

Do you often _____________?

I _____my ID card. I must find it.