The science teacher would ...... (perform) a most intriguing experiment if the school ...... (pay) for the equipment.
(Unfortunately, the school is short of science funds so there won't be any expriments at all.)

David's students might ...... (work) hard at school if they ...... (get) better motivation than just grades.
(Unfortunately, they don't feel any other motivation but grades.)

The runner could ...... (take) a short break if he ...... (want) to as all his rivals are far behind him.
(Still, he wants to beat his own record so he won't slow down even for a moment.)

The bookworm might ...... (lend) you the book for the month if you ...... (ask) him nicely.
(However, I am really not sure about this.)

The young English teacher would ...... (spend) the whole eternity with his former student if she ...... (feel) really comfortable with him.
(Unfortunately, gorgeous women never fall in love with hideous men.)

The IT guy would ...... (create) the software if you ...... (pay) him well.
(If you don't pay him well, he won't do so, of course.)

If the cameraman ...... (lose) the film, the producer would ...... (give) him the sack for sure.
(Fortunately, he's a very responsible guy who would never lose anything.)

If you ...... (leave) your purse at work, Anna, I would ...... (give) you a call and tell you it's still here.
(I know, however, that you're not forgetful so such a situation will never happen.)

If the vet ...... (nurse) all the animals to good health again, she could ...... (really / change) the world.
(Unfortunately, it's impossible for a single person to do the trick.)

If the shop assistant ...... (find) somebody stealing from the shop, he would ...... (call) the police at once.
(He hasn't caught anybody stealing yet.)

If my niece ...... (buy) a big house, she might ...... (need) a maid to help look after it.
(Fortunately, she doesn't have a big house, so she doesn't need a maid to help her with the housework.)

If my daughter ...... (have) a rich husband, she wouldn't ...... (go) to work at all.
(Fortunately, she doesn't have a husband.)