Lisa decided to do best she could.
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No one knows trouble I have run into.
A. a
B. an
C. the
D. /
The defendant decided to plead guilty into charge.
A. a
B. an
C. the
D. /
Poverty does not always lead to unrest.
A. a
B. an
C. the
D. /
电务段维护工作站做为网络管理终端,主要功能有()和()两类。