问题
选择题
Teachers recommend parents________ their children under 12 to ride bicycles to school for safety.
A．not allow
B．do not allow
C．mustn’t allow
D．couldn’t allow
答案
答案：A
本题考查虚拟语气。recommend作“建议”讲，从句用should+动词原形的虚拟语气，should可省略。故选A.