Помогите с Кондишиналс! Здесь только первый и второй

1.   Unless she reads the novel, she won't pass the literature test. 2.   If the sun shines, we will (или shall) walk to the town. 3.   If he were my friend, I would invite him to my birthday party. 4.   If Tony knew her phone number, he wouldn't give it to Frank. 5.   If I study, I will (или shall) pass the exams. 6.   If we lived in Rome, Francesco would visit us. 7.   If he had a temperature, he would see the doctor. 8.   If Oliver found money, he wouldn't keep it. 9.   Unless they wear pullovers in the mountains, it will be too cold during the night. 10.  If it rains, the children won't go for a walk. 11.  If I didn't argue with my father, he would lend me his motorbike. 12.  If my friends come, I will (или shall) be very happy. 13.  If Tim and Tom were older, they would play in our hockey team. 14.  If I come home earlier, I will (shall) prepare dinner. ИЛИ If I came home earlier, I would (или should) prepare dinner. (оба варианта возможны) 15.  If we take the bus, we won't (или shan't) arrive in time.