题目内容
Work hard, and you're sure to _______ catch up with others.
- A.can
- B.could
- C.be able to
- D.will
C
题中“to”是不定式符号,“to”后边一定要接动词原形,所以只能用be able to 表示“能够”。
题中“to”是不定式符号,“to”后边一定要接动词原形,所以只能用be able to 表示“能够”。
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