Put the verbs in brackets into the correct tense, as in the example:
3 If I were a doctor, I............ (work) for the organisation Doctors without Borders.
4 If Mary had enough money, she........... (open) her own restaurant.
5 If George ................ (know) her name, he would tell me.
6 If we had a car, we ..........(drive) across the USA.​