—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...
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...