Помогите пожалуйста, нужно глаголы поставить в present simple или continuous

1 A: Hey Stacey! Where are you going
B: I am going to the supermarket. Mum cant go today because she is working until late.
A: Thats a good idea. The fridge is almost empty.
2. A: What are you doing right now
B: I am studying tor the History test.
A: Do you want to take a break We can have some tea and then you can continue.
B: OK! That sounds good.
3. A: What are you cooking, Mum
B: I am trying a new recipe. Its an Italian dish.
A: Well, it smells delicious. I cant wait to taste it!
4. A: I am going to the shops now. Can you join me
B: I want to come but I cant. I need to study for my exams
A: No problem. I understand.