---Youswimreallyverywell.---Thankyou.Ihaveworkedhardatit.I________f
答案:2 悬赏:10 手机版
解决时间 2021-12-22 23:17
- 提问者网友：星軌
- 2021-12-22 20:09
--- You swim really very well.--- Thank you. I have worked hard at it. I ________ for 10 years.A.have swimmingB.have been swimC.been swimmingD.have been swimming
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- 五星知识达人网友：山君与见山
- 2021-12-22 21:31
D解析现在完成进行时的结构应该是 have been doing。
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- 1楼网友：骨子里都是戏
- 2021-12-22 22:28
对的，就是这个意思
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