[ Grammar ]
When an emergency vehicle is approaching with its lights and siren on, drivers —- pull over and stop to get out of the way.
A. must have moved
B. can’t have moved
C. needn’t have moved
D. must move

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Grammar › ViewHow long have you … your wife?
A. knew
B. known
C. knowed
Grammar › View
Ethan’s in the swimming pool now, ……………………..?
A. isn’t he
B. doesn’t he
