Помогите с 4 заданием ))) 9 класс

Question

Помогите с 4 заданием ))) 9 класс

---

Answer 1

I've just started this exercise
we've already studied this grammar
the teacher hasn't arrived yet
the test has just started
I haven't finished this exercise yet
we've already had lunch

Answer 2

I've just started this exercise.
We've already studied this grammar.
The teacher hasn't arrived yet.
The test has just started.
I haven't finished this exercise yet.
We've  already had lunch.