问题
选择题
--- Did you hear someone talking in the living room?
--- Oh, I forgot to ____ the TV just now.
A．switch off
B．switch on
C．turn on
D．switch over
答案
答案：A
题目分析：考查词组辨析：A. switch off关掉B. switch on打开C. turn on打开D. switch over交换位置，句意：--你听到有人在起居室说话吗？--我忘了关掉电视了。选A。
点评：这题考查switch相关的短语，相似的词组在平时学习中要记清楚，考查要放在上下文的语境中进行，