Помогите пожалуйста с 188 упражнением. Просто с грамматикой по английскому туго(

2 If Mike goes to Australia he will stay at a hotel. 3 When he returns from his journey he will call me.4 As soon as my parents come back Africa we will gather at our place. 5 When you cross the road you will see the Opera House in front of you. 6 If they are tired they will stop at a small town. 7 Don't go away until your friends come.8 If he needs any help, he will ask you. 9 My friend will wait for you if you are late.10 Don't worry if I am late tonight.