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。