Chương 34.18 Bài Tập 147

XV.1.

1. saw - was - had seen - remembered - was
2. knocked - was - had gone - didn't want
3. went - got - was already waiting - had arrived
4. was lying - wasn't watching - had fallen - was snoring - turned - woke
5. had just gone - was reading - heard - got - didn't see - went
6. had to - missed - was standing - realized - had left - had - got
7. met - was walking - had been - had been playing - were going - invited - had arranged - didn't have