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