问题
单项选择题
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
答案
参考答案：C
解析： had better do...最好做……；look after照顾；look up查找(查字典)；look for寻找。故选C。