问题

There are fewer teaching positions left in big cities, ____ at the same time there are shortages of teachers insmall towns[ ]

A: or
B: and
C: so
D: for

正确答案是：

同类题型

The room is _____with lots of people.

ilding _____ in our school isfor us teachers. Though there’s noise most of day, we still feel happy about it.

We were strongly recommended that we _____ in Malaysia.

Were you at school when it began to rain —Yes. I withmy teacher at that time.

Oliver looks a bit upset, did you tell him the bad news?— Yes, but I _____ him after his birthday party.