A new study has found that college studentshad been more involved in on-campus political activities during the last few years than at any time in the past two decades.
A.had been more involved in on-campus political activities during the last few years than atany time
B.had been more involved in on-campus political activities during the last few years than at any other time
C. have been more involved in on-campus political activities during the last few years than at any other time
CORRECT
...
A.had been more involved in on-campus political activities during the last few years than atany time
B.had been more involved in on-campus political activities during the last few years than at any other time
C. have been more involved in on-campus political activities during the last few years than at any other time
CORRECT
...





