8. A survey of the opinions of experts_____that three hours of outdoor exercise a week_____good for one's health.
A.show;are
B.shows;is
C.show;is
D.shows;are
正确答案是B
8. A survey of the opinions of experts_____that three hours of outdoor exercise a week_____good for one's health.
A.show;are
B.shows;is
C.show;is
D.shows;are
正确答案是B