We have been skating ________ two yeas ago.A．sinceB．forC Wap版

试题详情及答案解析

We have been skating ________ two yeas ago.

A．since

B．for

C．in

D．before

答案：A

试题分析：句意：自从两年前，我们就已经开始滑冰了。分析选项：since自从；for为了; in在之内；before之前。分析：考查固定用法since+段时间+ago.故选A
考点：考查介词的用法。