来自郭崇志的问题
They'llhaveapicnicifit____tomorrow.A.doesn'trainB.don'trainC.isn'trainingD.won'train
They'llhaveapicnicifit____tomorrow.
A.doesn'trainB.don'trainC.isn'trainingD.won'train


They'llhaveapicnicifit____tomorrow.A.doesn'trainB.don'trainC.isn'trainingD.won'train
They'llhaveapicnicifit____tomorrow.
A.doesn'trainB.don'trainC.isn'trainingD.won'train
A
if引导的从句是‘主将从现’,主语是三单,实义动词作谓语,故只有A对.
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