—Whyhaven’tyoufinishedyourwork?—Thecomputersystem
问题详情：—Whyhaven’tyoufinishedyourwork?—Thecomputersystem________suddenlywhenIwassearchingforinformationontheInternet.edown eout ...
—Whyhaven’tyouaskedhertocomehere? —She
问题详情： —Whyhaven’tyouaskedhertocomehere? —She_____animportantexperimentwhenIfoundherandshe_____it.A.haddone;didn’tfinish B.wasdoing;has...
—Whyhaven’tyouaskedhimtocomehere? —Hewasdoinganimportan...
问题详情：—Whyhaven’tyouaskedhimtocomehere? —HewasdoinganimportantreportwhenIfoundherandshe it.A.hadn’tfinished B.wouldn’tfinish C.didn’tfinish D.haven’tfin...
---Whyhaven’tyouaskedhertocomehere? ---She
问题详情： ---Whyhaven’tyouaskedhertocomehere? ---She_______animportantexperimentwhenIfoundherandshe_____it. A.haddone;didn’tfinish B.wa...
—Whyhaven’tyoufinishedyourhomeworkyet? —Theproblemare...
问题详情： —Whyhaven’tyoufinishedyourhomeworkyet? —Theproblemaresodifficult.I______hardwithoutstopallday.A.havebeenworking B.worked C.haveworked D.work【回答】A知识点：动词时态...