If they ... (catch) a bus now, they ... (arrive) at half past nine.
catch / will arrive
I ... (finish) the job tomorrow if I ... (can).
will finish, can
He ... (lose) weight if he ... (stop) eating so much. However, it's only an imagination!
would lose / stopped
If we ... (can) come on Sunday, we ... (come). I'm really sorry we can't.
could / would come
She ... (get) fit if she ... (walk) at least 3 km a day. But she's too lazy.
would get / walked
If I ... (go) on a boat, I always ... (feel) sick.
go, feel
If I ... (see) Peter, I ... (tell) him your news.
see, will tell
If you ... (freeze) water, it ... (turn) to ice.
freeze, turns
I ... (not need) an umbrella if it ... (not rain).
won't need / doesn't rain.
If you ... (heat) water until it reaches 100 degrees, it ... (boil).
heat / boils
If he ... (promise) to behave well, his mum ... (forgive) him.
promises / will forgive
If I ... (think) that about him, I ... (say) so aloud. But I don't actually.
thought / would say
You ... (make) a fortune if you ... (take) my advice. Too bad that you never listen to me!
would make, took
If she ... (want) to talk to me, she ... (call). But she never does.
wanted, would call
If he ... (not know) a word, he always ... (check) a dictionary.
doesn't know / checks
If you ... (need) help with your car tomorrow, my father ... (help) you.
need, will help
We ... (have) a picnic if the day ... (be) fine.
will have, is
I .. (understand) Mr Brown if he .. (speak) slowly. But he doesn't.
would understand, spoke