问题

_ they are seeing great development, they are still poorer than many countries in other parts of the world.

A:Unless
B:Since
C:While
D:As;

正确答案是：

同类题型

No matter how________, it is not necessarily lifeless.

Of all the sports, I think football is .

Could you tell me _____________

guess we ‘ve already talked about this before but I’ll ask you again just _____.

s retired, but he still remember the happy time _______ with his students.