问题

Schools in the east tend to be better equipped, ____ those in the west are relatively poor

A:As
B:While
C:When
D:But

正确答案是：

同类题型

Please don’ t make so much noise here．— ．

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The dish smells.[ ]

I’ve made a mistake, though I didn’t ________

With the price of houses, many people in big cities can’t afford to buy a house.