问题
选择题
The clock was striking twelve ______ down the street.
A．because I walked
B．as I walked
C．since I was walking
D．while I was walking
答案
B
句中的strike是非持续性动词，其动作与walk同时发生，用as不用while.
搜题请搜索小程序“爱下问搜题”
The clock was striking twelve ______ down the street.
A．because I walked
B．as I walked
C．since I was walking
D．while I was walking
B
句中的strike是非持续性动词，其动作与walk同时发生，用as不用while.