When we visited Zhou Zhuang again ten years later, we found it changed so much that we could hardly ________ it.
A. request B. recognize C. swap D. realize
While________ along the road, Mr. Smith met an old friend of his.
A. walked B. he is walking C. walking D. is walking
It was with the help of the local guide________ the mountain climber was rescued.
A. how B. who C. when D. that
Either you or one of your students________ to attend the meeting that is due tomorrow.
A. are B. is C. have D. be
Only when he apologizes for his rudeness________ to him again.
A. I will speak B. will I speak C. do I speak D. I speak
---How about your job hunting?
---No luck. Now, I’ve reached the stage________ I don’t care what I do.
A. which B. when C. where D. that
