1.If they (don't take care/didn't take care) of animals, they won't live on our planet.
2.If the boy is ready for the lesson, he (would get / will get) a good mark.
3. If Peter (not come) to my place, I (watch) Tv.
4. If Frank's parents (have) their holidays in summer, they (go) to the seaside
5. If they (have) their holidays in winter, they (stay) at home.
6. If the fog (thicken), Harold (put up) the tent for the night.
7. When I (finish) my work, I (go) to the cinema.
8. When we (come) to your place you (show) us your present.
9. I (return) you your ring when you (ask) me

1.If they don't take care of animals, they won't live on our planet. 2.If the boy is ready for the lesson, he will get a good mark. 3. If Peter doesn't come to my place, I will watch TV. 4. If Frank's parents have their holidays in summer, they will go to the seaside 5. If they have their holidays in winter, they will stay at home. 6. If the fog thickens, Harold will put up the tent for the night. 7. When I finish my work, I will go to the cinema.8. When we come to your place you will show us your present.9. I will return you your ring when you ask me