Odpowiedź :
1 A maths test is a possibility next week. HAVE
We might have maths test next week.
2 He needs good results or he won’t get into university. DOES
He won’t get into university if he doesn't have good results.
3 Have they planned to visit Greece this summer? GOING
Are they going to visit Greece this summer?
4 She’ll pass the exam if she studies harder. NOT
If she doesn’t study harder, she won't(will not) pass the exam.