优点英语状语从句答案全解全析随堂练习一Ⅰ.单句填空【答案】1Although/Though/While2before3as4Whether5because6While/Though/Although7because8till/untilⅡ.单句改错【答案】9When→Although或Though或While10after→before二【答案】1unless2If3that4Unless5Although/While/Though6until/till7where8although/though9because/as10As11While/Although/Though12Once/If13unless14before15as16Although/Though/While17Although/Though/While18once/if19before三【答案】1when/as2before3Although/Though/While4since5until6because7When/If8Although/Though/While9than10Though/Although/While11because12Although/Though/While13unless14until/till四【答案】1.after2.until/till3.unless/until4.as/though5.because6.As7.before8.so9.where10.wherever
