Viết lại 5 câu tương đương:
Viết lại 5 câu tương đương:
1. it is a few hours since they last got signals from the submarine
- they haven't..................................................................
- the last time..................................................................
- they last......................................................................
- a few hours has...........................................................
2. i haven't received messages from her for two weeks
- it is...............................
- the last time..............................
- i last..........................
-2 weeks has........................
1. it is a few hours since they last got signals from the submarine
- they haven't..................................................................
- the last time..................................................................
- they last......................................................................
- a few hours has...........................................................
2. i haven't received messages from her for two weeks
- it is...............................
- the last time..............................
- i last..........................
-2 weeks has........................