Question

—Why do you prevent them______playing computer games?
---Because they have a bad______on teenagers.

A．from,effect

B．from,affect

C．to,effect

D．to,effect

Answer 1

A

试题分析：句意：你为什么阻止他们玩电脑游戏呢？因为他们对青少年有不良影响。Prevent sb from doing sth意为“阻止某人做某事”；have effort on sb意为“对某人有影响”；故选A。