TO MY OPINION, LIVING IN HAPPINESS FOR TEN YEARS ______ A LONG TIME
10. To my opinion, living in happiness for ten years ______ a long time.
A. has not been
B. are not
C. have not been
D. will not be
10. To my opinion, living in happiness for ten years ______ a long time.
A. has not been
B. are not
C. have not been
D. will not be