三道初中英语单项题1.—Haveyoueverbeentoshanghai,Mary?—Yes,I_____thereforthreedayswithmyparentslastmonth.A.havegoneB.havebeenC.wentD.was这道题是选D,但为什么不能选C呢?2.Wehavetworooms____,butIcan'tdec

　　三道初中英语单项题

　　1.—Haveyoueverbeentoshanghai,Mary?

　　—Yes,I_____thereforthreedayswithmyparentslastmonth.

　　A.havegoneB.havebeenC.wentD.was

　　这道题是选D,但为什么不能选C呢?

　　2.Wehavetworooms____,butIcan'tdecide_____.

　　A.tolive,tochoosewhichonec.tolivein,whichonetochoose

　　前边的那个空格搞不清楚,为什么要+in

　　3.ThewaterbehindtheThreeGorgesDamshouldbe_____higherthandownstream.

　　A.sixty-fivemetresB.sixty-fivemetreC.sixtyfivemetresD.sixty-fifthmetres