摘要： Better go and ask him when he . We must see him off when he . A. is leaving ; leaves B. leaves ; is leaving C. leaves ; left D. left ; was leaving
网址：http://m.1010jiajiao.com/timu3_id_2862066[举报]
Better go and ask him when he ________. We must see him off when he ________.
- A.is leaving, leaves
- B.leaves, is leaving
- C.leaves, left
- D.left, was leaving