[ Prepositions ]
Classes begin _____ nine o’clock.
A. On
B. In
C. At
D. Over

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Grammar › View………… (teachers, have) a lot of work to do after school?
A. Do teachers have
B. Does teacher has
C. Do teachers has
Grammar › View
By the time I go to bed tonight, I _____ my work for the day.
A. will finish
B. have finished
C. will have finished
D. finish
