Before we started out, we'd better ______
题型：单项选择题
问题：
Before we started out, we'd better ______ the time of the next train in the time table.
A．look after
B．look for
C．look up
D．to look for
Before we started out, we'd better ______ the time of the next train in the time table.
A．look after
B．look for
C．look up
D．to look for