[ Modal Verbs - Obligation ]
Visitors to the zoo …………. feed the animals.
A. have to
B. don’t have to
C. mustn’t
Select your answer:
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Grammar › View“Is this your jacket?”
“No, it ….. .”
___
A. aren’t
B. isn’t
Grammar › View
Washing your hands helps remove __________.
A. toxins
B. additives
C. germs