1．When offered(offer) help, you should say “Thank you.” or “It's very kind of you.”
2．He often volunteered to_perform(perform) in the countryside, in factories and mines.
3．I don't feel qualified(qualify) to comment—I know nothing about the subject.
4．A policeman stood in the middle of the road, directing(direct) the traffic.
5．The man signed to us to_stop(stop) smoking, pointing to the No Smoking sign.
Ⅱ.单句改错
1．From his satisfying voice on the phone I know everything is going under way.
satisfying→satisfied
2．It rained last night so the flowers don't require watered.watered→watering
3．She demanded that I must give an immediate answer to the matter.
去掉must或must→should
4．Buying a house in Beijing is a very stressed experience.stressed→stressful
5．With the boy led the way, we had no trouble in getting to the station.
led→leading
ily:宋体; mso-bidi-font-family:"Times New Roman";color:black'>或welcomed前加and
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