Doctors strongly recommended that my father more exercise regularly instead of sitting st

问题补充：

Doctors strongly recommended that my father more exercise regularly instead of sitting still before a computer all day long.

A. takes

B. take

C. took

D. had taken

答案：

A. takes

B. take

C. took

D. had taken

解析：recommend后引导的从句，要用虚拟语气，即should + do.should可省，故选B。句意：医生强烈推荐我的父亲应该定期的做运动，而不是整天坐在电脑前面不动。