[ Grammar ]
You __________ enter through here.
A. have to
B. can
C. can’t
D. shouldn’t

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Grammar › ViewPRONOUNS: Choose the right pronoun for the sentence.
When the committee submitted _________ four versions of the document, it was clear to us that the committee members had acted as individuals, not as a group.
A. Its
B. Their
Grammar & Vocabulary › View
Visitor mustn’t _________ the exhibits.
A. touch
B. to touch
C. touches
Grammar and Vocabulary › ViewThere are many ____ in the hall
A. people
B. persons
C. person
D. peoples
Grammar › View
My husband ________ on planes.
A. doesn’t usually sleep
B. doesn’t sleep usually
C. usually isn’t sleeping