同学你好，该知识点来自沪江网校《新概念英语2、3、4册连读【双11专享班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
Key to KS Exercises
A The man said that he was travelling on the eight o'clock
train to London at the time the murder was committed. The inspector
asked him if he always caught such an early train. The man said
that he did because he had to be at work at ten o'clock, and that
his employer would confirm that he was there on time. The inspector
then asked him if a later train would get him to work on time. The
man supposed that it would, but said that he never caught a later
train. The inspector asked at what time he had arrived at the
station. The man said that he had arrived at the station at ten
to eight. He added that he had bought a paper and waited for the
train. When the inspector asked him if he had noticed anything
unusual, the man said he hadn't. The inspector suggested that he
was not telling the truth and that he did not catch the eight o'clock
train, but (caught) the eight twenty-five, which would still get
him to work on time. The inspector pointed out that on the morning
of the murder, the eight o'clock train did not run at all, as it
had broken down at Ferngreen station and had been taken off the
line.
Key to Multiple choice questions
1 c 2 d 3 c 4 d
5 a 6 c 7 c 8 a
9 d 10 a 11 a 12 d
Key to Sentence structure
I suggest that you are not telling the truth.

祝同学学习进步~