从句子后面的括号中选择适当的情态动词填空1.You___helphimbecauseyouarehisbestfriend(could,should)2.He_____sitlikethatforhourswhenhewasintrouble(will,would)3.She_____driveacar,butsometimesshegoestoschoolbyb

　　从句子后面的括号中选择适当的情态动词填空

　　1.You___helphimbecauseyouarehisbestfriend(could,should)2.He_____sitlikethatforhourswhenhewasintrouble(will,would)3.She_____driveacar,butsometimesshegoestoschoolbybus.(can,could)4.Lisasaidthere____beafewmagazinesinthatlibrary,butshewasnotsureyet(may,might)5.DoesJackgotoworkbybus?Heshould,butthe____not.Helikestogotoworkonfoot(may,can)6.You____betired.Youhavebeenworkingforonlyonehour(musn't,can't)7._____Iputawayyournotebookanduniformforyou?(shall,should)8.Mary____havebeenwellpreparedfortheexam,forshegotfullmarksinit(may,must)