You should more _____.Don't always sit at the desk busy doing your ______.解释句意并说明理由A exercise ,exercisesB exercises ,exerciseC exercises ,exercisesD exercise ,exerciseYou should do more 以上少了"do"

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Youshouldmore_____.Don''talwayssitatthedeskbusydoingyour______.解释句意并说明理由Aexercise,exercisesBexercises

You should more _____.Don't always sit at the desk busy doing your ______.解释句意并说明理由A exercise ,exercisesB exercises ,exerciseC exercises ,exercisesD exercise ,exerciseYou should do more 以上少了"do"
You should more _____.Don't always sit at the desk busy doing your ______.解释句意并说明理由
A exercise ,exercises
B exercises ,exercise
C exercises ,exercises
D exercise ,exercise
You should do more 以上少了"do"

You should more _____.Don't always sit at the desk busy doing your ______.解释句意并说明理由A exercise ,exercisesB exercises ,exerciseC exercises ,exercisesD exercise ,exerciseYou should do more 以上少了"do"
A
第一个指名词锻炼,不可数
第二个指名词练习题,可数