用定语从句将两句合为一句:

题目

用定语从句将两句合为一句:
The boy was killed in a road accident.
The boy didn't obey the traffic rules.
I have looked the words in the dictionary.
I borrowed the dictionary from the library.
Accidents often happen.
The reason is that people don’t always obey the traffic rules.
The Winter Olympics are always held in a mountainous country.
In this country there is plenty of snow.
The man would never forget the day .
On the day John jumped into the water to save him.

答案

The boy who didn't obey the traffic rules was killed in a road accident.
I have looked the words in the dictionary which I borrowed from the library.
Accidents often happen when people don’t obey the traffic rules.
The Winter Olympics are always held in a mountainous country where there is plenty of snow.
The man would never forget the day whenJohn jumped into the water to save him.