Вопрос по английскому языку:

Упражнение 2. Вставьте вместо точек when или if. 1. … you can’t do your homework, ask for help. 2. I’ll give the money back to you, … I see you next time. 3. I’ll come to bed … this programme ends. 4. … anyone phones me, tell them I’m out. 5. Come on! … we hurry, we’ll catch the bus! 6. … I play tennis with Justin, he always wins. 7. The shops are full of things to buy … Christmas comes. 8. «I’ve lost my bag.» — «… I find it, I’ll let you know.»