Work hard,__________ you won't do well in the exam.[ ] A.and B.but C.because D.or

问题描述:

Work hard,__________ you won't do well in the exam.[ ] A.and B.but C.because D.or
为什么选D,won不是过去式吗

or 否则,不是won 是won't 等于 will not
努力学习,否则的话你会考不好的
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