—Largequantitiesoftime
问题详情:
— Large quantities of time ______ been spent on the discussion.
— Yes, and most students are now for the requirement that all the students not take their cell
phones into the classroom.
A. is; will B. has; can C. are; must D. have; should
【回答】
D
知识点:主谓一致
题型:选择题