问题
选择题
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
答案：B
题目分析：句意：医生强烈建议我爸爸经常锻炼而不是整天坐在电脑前面。主句的谓语是recommend，宾语从句的谓语要用虚拟语气（should do），should可以省略，所以选B。