Past perfect vs past simple
1. I already (hear)……… about the accident when he (tell)……….me about it
2. Our guest (be)………..still here when he (come) …………back from school
Past perfect vs past simple
1. I already (hear)……… about the accident when he (tell)……….me about it
2. Our guest (be)………..still here when he (come) …………back from school
1. I had already heard/ told ( qk hoàn thành)
Công thức: S + had + VpII
2. were/came( qk đơn)
Công thức:
Tobe: S + was/ were + O
Thường : S + V-ed/ VQK (bất quy tắc) + O
1. have already heard | told
2. has been | came