Помогите правильно заполнить пропуски

Помогите правильно заполнить пропуски. Write the correct form of the verbs in the blanks below: 1. (to be) If the question __________ difficult, we canask the teacher. 2. (to save) Lee will go to Disneyland if he __________ enough money. 3. (to buy) If I __________ a lottery ticket, I might win the lottery. 4. (to have) My friend usually walks to school if he __________ enough time. 5. (to start) If the movie __________ at eight, we will be late! 6. (to have) We can go waterskiing if Jeff's boat __________ gas. 7. (to pass) The class will have a party if the students all __________ their tests. 8. (to be) If there __________ milk in the refrigerator, I'll have milk with my cake. 9. (to eat) If my sister __________ all of the cake, I will get angry. 10. (to tell) My mother always punishes my sister if she __________ a lie. NEGATIVESUSE CONTRACTIONS) 11. (not end) If the world __________ tomorrow, we'll have to go to work as usual. 12. (not come) If the pizza ______________ soon, we can eat a sandwich instead. 13. (not be) If there ______ any milk in the refrigerator, I'll go to the supermarket. 14. (not snow) If it ______________ tomorrow, we can't go skiing. 15. (not rain) My dad will paint the garage if it ______________ on Saturday. 16. (not go) If we ______________ to work, we won't get paid. 17. (not buy) We can't go if we ______________ a ticket. 18. (not go) I will call you if she ______________ to the movies, and we can go out together. 19. (not be) We should go jogging if it ______________ raining outside. 20. (not ring) If the phone __________________ this afternoon, I can take a nap.