If they _______ (leave) now, they ___________ (be) home at 2 o'clock.
We _____________ (tell) you that a bird pooped on you, if you _______________ (make) such nasty jokes about us.
Children _______ (cry) if they __________ (not + get) enough sleep.
If your parents ________ (tell) you they love you, you _____________ (surely + say) it back to them.