Conditionals 2

If these refugees received a recommendation from the doctor they (a)   (to get) a house sooner.

If he (a)   (not test) them, they wouldn't have known they were ill.

If you had known what his reaction would be, (a)   (you + still + to invite) him?

If you (a)   (to ask) someone from the audience, you would find out how ill-informed they were.

If you … (to tell) me the truth, I would have helped you, but you lied to me!

(a)  

The PM would remember the facts if he (a)   (to do) his best.

I wouldn't do that if I (a)   (to be) you.

I (a)   (to study) harder if I had known that the test would be so difficult.

I (a)   (to be) thrilled if you invited me to your party.

If you guarantee that I can return the product I (a)   (to order) immediately.