_________ I picked up the receiver, I realized that someone had dialed the wrong number.
Great changes ______ in China in the past 20 years.
The question is ______ it is worth doing.
---Would you mind my sitting here ____ lunch? ---______. A. and have, No, not at all C. and having, No, thank you. C. to have, Never, go ahead. D. and have, Oh, it’s my pleasure.
It was rude ______ you to stare at the foreigner when he passed by just now.
—Where is Bob? I cannot find him anywhere. —He have been off long. I heard him make a call just now.