MY DOG IS VERY FIERCE. MY FATHER KEEPS THE DOG ... SO THAT IT WILL...

25. - 3500 CAU TRAC NGHIEM ON TAP AV THCS

3500 CAU TRAC NGHIEM ON TAP AV THCS

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25. My dog is very fierce. My father keeps the dog ... so that it will not bite

anybody.

a. in chain

b. unchained

c. chained up

d. to be chained

 c