Условные предложения (2 тип) "Second Conditional"

1. If we ... (be not) so busy with our homework we ... (help) our parents about the house more often.
2. If the teachers ... (show) us some interesting films, we ... (study) more eagerly.
3. Our town ... (be) clean and nice if all ... (avoid) dropping litter in the streets.
4. I ... (talk) to Nick right now if I ... (nave) my mobile with me here.

1)don't,will help

2)show, will study

3)will be, avoids

4)will take, nave