[ Tenses ]
They _______ in the library when the fire alarm went off.
A. study
B. are studying
C. studied
D. were studying
Select your answer:

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Vocabulary & Grammar › View
Which sentence uses a dependent preposition correctly?
A. She is afraid for spiders.
B. They are interested at culture.
C. He is responsible for the ceremony.
D. We are proud on our tradition.
