题目内容：

42.Five minutes earlier,________ we could have caught the last train.
A) and
B) but
C) or
D) an order

优质解答

A如果早到5分钟,我们就可以赶上最后一班火车,虚拟句型,这是一个承接关系全句为：If we get the train station 5 minites earlier,and we will...如果把earlier 改为 late,就应选择 C,那样全局翻译为：我们迟到了5分...