【導(dǎo)讀】從1-20各題所給的A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳答案。A.Was,cleanedB.Will,becleanedC.Is,cleanedD.Has,beencleaned. A.theyfoundB.theydidfindC.didtheyfindD.theydidn′tfind. A.isfamousasB.a(chǎn)refamousasC.isfamousforD.a(chǎn)refamousfor. A.shouldpaytoB.mustbepaidC.shouldbepaidtoD.willbepaid