1)
1. a.are we meeting
b. starts/ we are meeting
2. a. Is Ian coming
b. don’t think / hasn’t finished
3. a. have you seen
b. is
4. a. do you exercise
5. a. Is Tanya
b. eats/sleeps
6. a. Are Laura and Penny leaving
b. have already left
7. a. are you looking
b. am looking / have just lost
8. a. does the Eurostar train leave
9. a. are you going
b. haven’t decided
10. a. does Leo live
b. is staying
11. a. Are you having
b. have already invited
12.a. Have you been
b. still is going up
2)
1. have been
2. am having
3. feel
4. have met
5. am sharing
6. is planning
7. hope
8. haven’t been
9. are you leaving
10. haven’t you found
Объяснение:
1. certainty – uncertainty
2. dependence – independence
3. fairness – unfairness
4. happiness – unhappiness
5. possibility – impossibility
6. tidiness – untidiness