Complete using mixed conditionals

II. Complete using mixed conditionals 

1. He ………………………………… (not be) ill today if he ………………………………… (not walk) home in the rain last night.

2. You’ve been playing with that cat for hours. If you ………………………………… (be) allergic to cats, you ………………………………… (know) by now.

3. We ………………………………… (not be) stuck here now if you ………………………………… (take) the car to the garage before we left for our holiday.

4. If I ………………………………… (be) you, I ………………………………… (not sell) my car before I bought another one. How will you get to work now?