[ Grammar ]
Please don’t make so much noise. I __________ (study) for my online degree.
A. study
B. have studied
C. am studying
D. studied

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Modal Verbs › ViewDetermine the correct use of “can”: “You ___ come to the study session if you need extra help.”
A. must
B. should
C. can
D. could
Grammar › View
If you had saved enough money, you …….. that smartphone last week.
A. could have bought
B. could buy
C. would buy
D. had bought