Question

【题目】I was watching the clock all through the meeting, as I had a train ___________.

A. catching B. caught

C. to catch D. to be caught

Answer 1

【答案】C

【解析】句意：在整个会议期间我一直在看钟表，因为我要去赶火车。根据上文判断出as引导原因状语从句，Sb have sth to do 某人有某事要做（在本句中to do 由主语完成），根据句意判断选C。