题目内容
用who, which或that填空
A nurse is a person ________ looks after people ________ are ill.
A clock is a machine ________ tells people the time.
April 1st is the day ________ is, called April Fools’ Day in the west.
These are the pictures ________ my daughter drew when she was young.
This is the best film ________ has been shown this year.
