Condituinal Clause

They will talk to Jacek if he  (come).

Bożena comes to work 30 minutes late if her child  (miss) the bus to school.

If Peter  (think) twice, he wouldn't have made such a stupid mistake.

Kasia  (become) a university lecturer if she studies hard.

If they  (know) all the facts, they would have found the defendant guilty.

Unless you  (hurry up), we will never arrive on time.

If I were in charge, I  (change) the standard business routines.

He takes his daughter out to dinner, if she  (come) to town.

If I hadn't known better, I  (trust) him.