If they ... (catch) a bus now, they ... (arrive) at half past nine.
catch / will arrive
If I ... (go) on a boat, I always ... (feel) sick.
go, feel
If he ... (promise) to behave well, his mum ... (forgive) him.
promises / will forgive
If you ... (heat) water until it reaches 100 degrees, it ... (boil).
heat / boils
If you ... (freeze) water, it ... (turn) to ice.
freeze, turns
Meg sleeps only 5 hours a day. If she ... (sleep) longer, her health ... (improve) fast.
slept, would improve
She ... (get) fit if she ... (walk) at least 3 km a day. But she's too lazy.
would get / walked
You ... (make) a fortune if you ... (take) my advice. Too bad that you never listen to me!
would make, took
If I ... (see) Peter, I ... (tell) him your news.
see, will tell
I .... (not go out) next Saturday if our teacher gives us a lot of homework.
won't go out
I often get bored when I .... (watch) sport.
watch
I ... (finish) the job tomorrow if I ... (can).
will finish, can
I ... (not need) an umbrella if it ... (not rain).
won't need / doesn't rain.
He ... (lose) weight if he ... (stop) eating so much. However, it's only an imagination!
would lose / stopped
If she ... (want) to talk to me, she ... (call). But she never does.
wanted, would call
Life ... (be) boring if we ... (have) nothing to do. It's great it isn't so!
would be / had
If we ... (can) come on Sunday, we ... (come). I'm really sorry we can't.
could / would come
I .. (understand) Mr Brown if he .. (speak) slowly. But he doesn't.
would understand, spoke
If you ... (need) help with your car tomorrow, my father ... (help) you.
need, will help
If I ... (think) that about him, I ... (say) so aloud. But I don't actually.
thought / would say
If he ... (not know) a word, he always ... (check) a dictionary.
doesn't know / checks
We ... (have) a picnic if the day ... (be) fine.
will have, is