beableto的用法讲解
回答
爱扬教育
2022-06-08
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(2) be able to 强调一种结果,而can只强调一种可能
(3) be able to 可以有各种时态；而can只有一般现在和一般过去两种时态
(4) can可用于表示可能性,推测,允许等情况,而be able to通常不这样用
扩展资料
She can sing the song in English.她能用英语唱这首歌.
Luckily,he was able to escape from the big fire in the end.幸运的是,他终于逃出了大火.
If he got here a few hours earlier,I could save him.要是他早几小时来,我还能救他.
Luckily,he was able to escape from the big fire in the end.幸运的是,他终于逃出了大火.
If he got here a few hours earlier,I could save him.要是他早几小时来,我还能救他.