If you don't study hard,you will fail in the exam(同义句)If you don't study hard,you won't be () to () the exam.

问题描述:

If you don't study hard,you will fail in the exam(同义句)
If you don't study hard,you won't be () to () the exam.

If you don't study hard,you won't be (successful) to (pass) the exam.

able pass

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正确答案是:
If you don't study hard,you won't be (able) to ( pass) the exam
.如果你不好好学习,你就不能通过考试.
【解析】: be able to do = succeed in doing = manage to do 成功地做成...
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successful pass