UNIT 1 TO UNIT 3I. HÃY CHỌN MỘT TỪ CÓ PHẦN GẠCH DƯỚI ĐƯỢC PHÁT ÂM KHÁC...
33. Since the new regulations _________ in their school last month, there has been a remarkable
decrease in the number of problematic students.
A. came into force B. were put into being C. came true D. were put into force
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