[ Past form of Modals ]
I had a test this morning. I didn’t do it well. I ______________ last night.
A. should study
B. must have studied
C. should have studied
D. must study

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Present Simple Positive and Negative › ViewYou __________ every day.
A. does studies
B. don’t studies
C. don’t study
Grammar › View
The company will upgrade _________ computer information systems next month.
A. There
B. Their
C. It’s
D. Its
What is the function of a conjunction of purpose?
A. To express the intention or goal behind an action.
B. To show contrast between two ideas.
C. To indicate a time frame for an action.
D. To provide a reason for an action.
Articles and Prepositions › View
What is used to indicate a singular noun that is being mentioned for the first time?
A. the
B. a/an
C. some
D. many
