【正文】
句中but for意為“要不是”,表示與過去事實相反的假設,故只能用would have done結構。”shall用于二、三人稱陳述句中,表示說話人給對方命令、警告、允諾或威脅等。由句意可知A項正確。10.C11.【解析】選A。7.D8.【解析】選D。2.【解析】選B。專題八 情態(tài)動詞和虛擬語氣1.(2011年高考課標全國卷)They________ have arrived at lunchtime but their flight was delayed.A.will B.canC.must D.should2.(2011年高考江蘇卷)—I left my handbag on the train,but luckily someone gave it to a railway official.—How unbelievable to get it back! I mean,someone________ it.A.will have stolen B.might have stolenC.should have stolenD.must have stolen3.(2011年高考天津卷)I ________sooner but I didn’t know that they were waitin