Tờ 1:
exercise 4:
1. will leave - knows
2. will come - see
3. will come
4. will you spend
5. bloom
6. are preparing
7. worked
8. build - fly
9. lost - can
10. joined - was
Exercise 5:
1. wrote - was
2. left
3. did you speak
4. discovered
5. can't - saw
6. did Nguyen Du die - don't - died
7. is coming
8. will be
9. don't eat
10. is singing

Tờ 2:
Exercise 6:
1. had finished
2. was built
3. has cut
4. won't come
5. says - talks
6. had you done - went
7. broke - stole
8. listened
9. will say
10. get - rises
Exercise 7:
1. asks
2. am working
3. was - wanted
4. left
5. met
6. goes - didn't go
7. will travel
8. had
9. brushes - forgot
10. doesn't like - drinking

Tờ 2:
Exercise 8:
1. was - drank
2. goes
3. to tell
4. playing
5. listening
6. listening - listening
7. gathering
8. was - liked going
9. are sitting - are waiting
10. inviting
Exercise 9:
1. bought
2. will they spend
3. do you think - will do - will tell
4. will you wait - am looking
5. will speak
6. am doing
7. umderstand - saying
8. to be - will wait
9. are sitting - am writing
10. will help - finishes