1. I won’t finish it on time unless you help me. (Conditional 1)
2. If I had another puncture, I would repair it. (Conditional 2)
3. If they were Japanese, they wouldn't speak Chinese. (Conditional 2)
4. If I saw a big spider in my house, I would scream loudly. (Conditional 2)
5. The hijackers would threaten us if they had a bomb. (Conditional 2)
6. You would have arrived earlier if you had caught a taxi. (Conditional 3)
7. Eric would have won the race if he had trained better. (Conditional 3)
8. Kevin will return to the office if his boss tells him so. (Conditional 1)
9. His mother would let him go to the party if he got good marks at the exam. (Conditional 2)
10. Maria’s friend would have enjoyed the concert if she had gone. (Conditional 3)
1 have reading 2 have playing 3 has cleaning 4 has swimming 5 has speaking 6 have waiting 7 have doing 8 has snowing 9 have riding 10 has explaining
1 I haven't reading this book. 2 We haven't playing volleyball or 20 minutes. 3 She hasn't cleaning the flat for more than an hour. 4 Peter hasn't swimming for half an hour. 5 Ann hasn't speakingon the phone for an hour now. 6 You haven't waiting for a bus for ten minutes only. 7 Nelly and Mary haven't doing the shopping since early morning. 8 It hasn't snowing since last night. 9 Jack and his friend haven't riding bikes for three hours now. 10 The teacher hasn't explaining a grammar rule since the beginning of the lesson.