6、___toShanghai.A.hasbeen B.hasgone C.goes D.going( )15.Wehavebeenfriendssince________A fiveyears B fiveyearsago C fiveyearsbefore D fiveyear( )16.Thoseforeignfriendslefthere________A sincelastweek Baweekago Cforaweek D sinceaweekago( )17.Hisfather________foryears.A hasdie
7、d Bhasbeendead C died D dies( )18.Theoldwomanlives________,butshedoesn'tfeel________.A alone, alone B lonely, lonely C alone, lonely D lonely, alone( )19.Theaccident____________justnow.A.havehappened B.washappened C.happened D.havebeenhappened( )20.Theteachershould__