[ Modals and Active and Passive Voice ]
. _____is used to express that something is not allowed or forbidden.
A. Permission
B. Obligation
C. Prohibition
D. Ability

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Tag Questions › View___ that your suitcase?
A. Is
B. Do
C. Does
D. Are
Grammar Rules › View
Correct the subject-verb agreement in the following sentence: The birds (sing) in the trees.
A. The birds sing in the trees.
B. The birds singing in the trees.
C. The birds sings in the trees.
D. The birds singed in the trees.
Modal Verbs › ViewWe ___ buy some groceries on the way home.
A. can
B. must
C. may
D. might
Modals › View
You _______ smoke inside the school. It’s banned.
A. mustn’t
B. don’t have to
