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E. Choose the correct answers.
1. You
respect the rules when you walk your dog in this park.
C. have to
A. must
B. must not
D. don't have to
2. Before you enter the park, you
attach a leash to your dog's neck.
C. have to
A. must
B. must not
D. don't have to
3. You
enter the park until your dog is on a leash.
C. have to
A. must
B. must not
D. don't have to
4. You
allow your dog to run free.
A. must
B. must not
C. have to
D. don't have to
5. You
pick up your dog's poop (waste).
C. have to
A. must
B. must not
D. don't have to