动词时态练习1.Jiabi'stwenty.he_____somechinesebythetimehe___ten.A.hadlearned,wasB.haslearned,wasC..learned,wasD.haslearned,hadbeen2.Sandy_____herenow.Iguessshe_____tothelab.A.isn't,hasgoneB.is,hasgoneC.isn't,wentD.isn'

　　动词时态练习

　　1.Jiabi'stwenty.he_____somechinesebythetimehe___ten.

　　A.hadlearned,wasB.haslearned,wasC..learned,wasD.haslearned,hadbeen

　　2.Sandy_____herenow.Iguessshe_____tothelab.

　　A.isn't,hasgoneB.is,hasgoneC.isn't,wentD.isn't,hasbeen

　　3.Thestreetlight____onwhennightfalls.

　　A.willbeB.havebeenC.wouldbeenD.are