来自李允的问题
We____sixdaysaweekfortenyears.butweonlyworkfivedaysnow.A.haveusedtoworkB.usedtoworkC.havebeenusedtoworking.D.haveusedtoworking
We____sixdaysaweekfortenyears.butweonlyworkfivedaysnow.
A.haveusedtoworkB.usedtoworkC.havebeenusedtoworking.D.haveusedtoworking
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2020-08-06 06:43