[ Present Perfect Tense ]
My father hasn’t slept ________________ twenty-four hours.
A. For
B. Since
Select your answer:

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Tenses › ViewShe has forgotten her purse since she was at home.
A. Simple Present Tense
B. Present Continuous Tense
C. Present Perfect Tense
D. Simple Future Tense
Modal and Auxiliary Verbs › View
Use a modal verb in the following sentence to express obligation: Students ________ wear a uniform to school.
A. can
B. should
C. must
D. might
