问题标题:
教育/科学->外语学习->I__theUSAforabouttwoyearsA.havebeentoB.havegonetoC.havebeeninD.havebeen-Wearegoingtohaveafour-dayholiday-____gotoHangzhouforholiday.A.HowaboutB.WhataboutC.ShallweD.Howdowe
问题描述:

教育/科学->外语学习->

I__theUSAforabouttwoyears

A.havebeentoB.havegonetoC.havebeeninD.havebeen

-Wearegoingtohaveafour-dayholiday

-____gotoHangzhouforholiday.

A.HowaboutB.WhataboutC.ShallweD.Howdowe

李得伟回答:
  C由for可知是一段时间,用havebeenin   C.Howabout和Whatabout后加doing,shall表示建议的意思
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