If you (feel) lonely at any time,(ring) me up.
If he (arrives) before I get back,(give) him something to drink.
He promised me that if he (got) into trouble,he (would ask) for my help.
My boy never (disturbs) me if he (doesn't believe) what he (says).
The driver said that if the fog (got) worse we (would) have to leave the car and walk home.
If she (is) not the kind of girl he (wants),why doesn’t he find a new one?
If the car (is) badly damaged,why (don't) you send it to the garage?
If he (fails) in the exam,he (won't keep) the job he is doing now.