1．We went to Canada to travel and my cousin ______ as our guide.
A．played B．showed C．acted D．performed
解析：
act as担任；充当。句意为“我们去加拿大旅游，我的表兄当向导。”而perform as意为“起……的作用”，A、B两项不与as搭配。
答案：C
2．He suddenly saw Sue _____ the room. He pushed his way ____ the crowd of people to get to her.
A．across, across B．over, through
C．over, into D．across, through
解析：
考查介词的用法。push one’s way through是固定搭配的词组，意为“设法通过；挤过”。across意为“在那边；在对面”。句意为“他突然看见她在对面的房间那儿，他挤过人群来到她跟前。”
答案：D
3．The country life he was used to ______ greatly since 1992.
A．change B．has changed
C．changing D．have changed
解析：
注意分析句子结构，he was used to是定语从句修饰life.空格处是句子的谓语部分，句意为“他过去习惯的农村生活自从1992年以来已经变了。”since 1992决定了句子的动词用完成时，the country life是单数，故选B。
答案：B
