If I ... (go) on a boat, I always ... (feel) sick.
go, feel
We ... (have) a picnic if the day ... (be) fine.
will have, is
She ... (get) fit if she ... (walk) at least 3 km a day. But she's too lazy.
would get / walked
If they ... (catch) a bus now, they ... (arrive) at half past nine.
catch / will arrive
If you ... (heat) water until it reaches 100 degrees, it ... (boil).
heat / boils
If I ... (see) Peter, I ... (tell) him your news.
see, will tell
I ... (finish) the job tomorrow if I ... (can).
will finish, can
If she ... (want) to talk to me, she ... (call). But she never does.
wanted, would call
If you ... (need) help with your car tomorrow, my father ... (help) you.
need, will help
If he ... (not know) a word, he always ... (check) a dictionary.
doesn't know / checks
If I ... (think) that about him, I ... (say) so aloud. But I don't actually.
thought / would say
I .. (understand) Mr Brown if he .. (speak) slowly. But he doesn't.
would understand, spoke
Meg sleeps only 5 hours a day. If she ... (sleep) longer, her health ... (improve) fast.
slept, would improve
You ... (make) a fortune if you ... (take) my advice. Too bad that you never listen to me!
would make, took
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
He ... (lose) weight if he ... (stop) eating so much. However, it's only an imagination!
would lose / stopped
I ... (not need) an umbrella if it ... (not rain).
won't need / doesn't rain.
If he ... (promise) to behave well, his mum ... (forgive) him.
promises / will forgive
If you ... (freeze) water, it ... (turn) to ice.
freeze, turns