13. If they (catch) a bus now, they (arrive) at half past nine. 14. If he (not/know) the word, he always (look) in a dictionary.
15. She (get) fit if she (walk) every day 3 km. But she is too lazy.
16. If I (think) that about him, I (say) so aloud. But I don't actually.
17. If he (promise) to behave well, his mum (forgive) him in some
time.
18. If you (want) me to, I (come) for a walk with you next
weekend.
19. If we (can) come on Sunday, we (come). I am really sorry but
we can't.
вставьте нулевой,первый,второй или третий тип условных предложений