[ Modals and Active and Passive Voice ]
. ____usually mean that it is the speaker who is setting the rule.
A. Can’t
B. Mustn’t
C. Didn’t
D. Couldn’t

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Prepositions › ViewIt occurred ________ him that it was useless to wast more energy and time.
A. Without
B. Against
C. With
D. To
Grammar › View
Please choose the best choice for the following question.
Mrs. Chen needs research materials for her class. Where should she go?
A. the government office
B. the principal’s office
C. the school library
D. none of the abovce