问题
选择题
He was about to tell me the secret_____ someone patted him on the shoulder.
A．as
B．until
C．while
D．when
答案
答案：D
在主句是be about to do sth.的情况下，从句用when引导。
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He was about to tell me the secret_____ someone patted him on the shoulder.
A．as
B．until
C．while
D．when
答案：D
在主句是be about to do sth.的情况下，从句用when引导。