题目内容
It gets dark. Please ________ the light.
[ ]
|
A .switch off |
B .turn on |
|
C .turn down |
D .switch up |
答案:B
解析:
解析:
|
switch vt., vi.( 与on, off连用),开关(电器等设备),switch on/off=turn on/off. |
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