III.1, C.become => became
2, B.is => was
3, A.did => were doing
4, A.played => was playing
5. A.did you do => were you doing
Bài mấy ko biết: 49. bathed/ looked/ played
50. arrived/ was having/ appolised/ said/ dined
51. came/ were sitting/ was doing/ was knitting/ were reading/ smiled/ said
52. rang/ came/ were still playing/ was pulling/ ran/ told
* Chúc bạn học tốt*
Mik xin CTL hay nhất nhé
