摘要:28.-- have you been learning English, Wu Bing? -- For ten years.A.How soon B.How long C.How often D.How fast
网址:http://m.1010jiajiao.com/timu_id_800556[举报]
If I ________ that she was ill, I would have gone to see her.
- A.knew
- B.know
- C.have known
- D.had known