Unit 1
LESSON 2
1. I'll get
2. are you going to do,
I'm going to see,
I'm not going to study
3. My friend is going to join
4. I'll help
5. I'll have
LESSON 4
1. I'm taking
2. is going
3. are leaving
4. We're flying
5. is arriving
6. We're staying
Unit 2
LESSON 2
1. you'll save
2. they'll damage
3. if we don't protect
4. if you read
5. animals will eat
LESSON 4
1. had, would take
2. knew, would tell
3. would buy, were
4. could speak, would travel
5. would feel, didn't live
Unit 3
LESSON 2
1. Something
2. someone
3. anything
4. Everybody
5. everything
6. Nothing
7. Everyone
8. No one
LESSON 4
1. doesn't he
2. does he
3. isn't it
4. aren't they
5. can't they
6. do they
Unit 4
LESSON 2
1. was destroyed
2. were sold
3. was named
4. 's/is known
5. are held
LESSON 4
1. Driverless cars are being tested.
2. That TV show is not being watched by many people.
3. Electric bikes are being used by more people.
4. My camera is being fixed in a repair shop.
5. Robots are being used to rescue people.
Unit 5
LESSON 2
1. A
2.B
3. B
4. B
LESSON 4
1. played; C
2. built; A
3. spoken; E
4. started; B
5. found; D
Unit 6
LESSON 2
1. have been celebrating
2. since
3. has been preparing
4. for
5. have been looking at
6. since
7. have been sking
8. for
9. has been having
10. since
11. has been growing
12. for
LESSON 4
1. D
2. C
3. B
4. A
Unit 7
LESSON 2
1. must not
2. should
3. don't need to
4. must
5. have to
LESSON 4
1. themselves
2. itself
3. myself
4. himself
5. yourself /yourselves
Unit 8
LESSON 2
1. had asked
2. had covered
3. had died
4. had packed
5. had spent
LESSON 4
1. hadn't flown in an airplane before yesterday.
2. How long had you waited before you got a new pet?
3. Had you ever spoken English before you started this class?
4. Many thousands of years ago,people lived in this area.
5. Had you studied the material before you took the exam?
Unit 9
LESSON 2
1. had heard
2. would have caught
3. wouldn't have been
4. hadn't hurried
LESSON 4
1.What would you have done if you had been me?
/ If you had been me, what would you have done?
2. Would you have held the picnic if it had rained?
/ If it had rained, would you have held the picnic?
Unit 10
LESSON 2
1. Mei said (that) she finished work at 6:00.
2. Gabriel said (that) he was working on a big exhibition.
3. Mei said (that) she had always wanted to work in a museum. (no change)
4. Gabriel said (that) he had worked at the museum for two years.
LESSON 4
1. She said that it was fantastic. OR She told me that it was fantastic.
2. She told her friends all about it.
3. She told me her favorite part was the old paintings.
4. She told us that she planned to go again.
Unit 11
LESSON 2
2. She asked what they would see.
3. Sam asked if it was far.
4. He asked if he should bring his lunch.
LESSON 4
1. My friend asked me to text him in an hour.
2. Mia asked a classmate to help her with her homework.
3. His parents told Jose/him to clean his room.
4. My grandmother asked us to visit her later.
Unit 12
LESSON 2
1. I wish I lived in the mountains.
2. She wishes she could go with us.
3. I wish I could remember new vocabulary.
4. We wish we didn't have to study tonight.
5. I wish it was summer.
LESSON 4
1. out
2. back
3. away
4. up
5. out
