―Whywashelateagain?―Hearrivedatthestationlate. 

问题详情：

― Why was he late again? ― He arrived at the station late. _______ , he missed the early train.

A. However     B. Because   C. Therefore    D. Though 

【回答】

C  点拨：Therefore,连词“因此”， 故选C。

知识点：连词

题型：选择题