Which is correct? Sometimes must and have to are both correct.

It’s a great film. You ______________ it.
1. a. must see
2. b. have to see
In many countries, men ______________ military service.
1. a. have to do
2. b. must do
You can’t park your car here for nothing. You ______________.
1. a. must pay
2. b. have to pay
I didn’t have any money with me last night, so I ______________some.
1. a. must borrow
2. b. had to borrow
I eat too much chocolate. I really ______________.
1. a. must stop
2. b. have to stop
“Why is Paula going now?” “ She ______________ somebody.”
1. a. must meet
2. b. has to meet
What is wrong? You ______________ me. I want to help you.
1. a. must tell
2. b. have to tell