他过去能在10秒内跑完100米.He used to __ run a hundred metres in less than 10 seconds.

分类: 作业答案 • 2022-01-09 18:02:51

问题描述：

他过去能在10秒内跑完100米.He used to __ __ __ run a hundred metres in less than 10 seconds.

答

be able to

他过去能在10秒内跑完100米.He used to __ __ __ run a hundred metres in less than 10 seconds.