问题

ing to World HealthOrganization, health care plans are needed in all big cities to prevent spread of AIDS

A:up
B:for
C:of
D:on

正确答案是：

同类题型

I failed again. I wish I _________ harder.—Butyou _________.

an we go outing in this kind ofweather!”! Bob said,__________ out of the window

The hospital opposite our school operates well, _____many patients _____ every day.

The students usually need ________ sleep a night.

My English teacher is usually very busy（繁忙）______.