问题
选择题
As there was no one she could________， she felt very helpless.
A．turn to
B．turn on
C．turn off
D．turn over
答案
答案：A
考查动词短语辨析。turn to意为“求助于”，此处she could turn to为定语从句，引导从句的关系代词whom省略了。turn on“打开”；turn off“关掉”；turn over“翻转”。