Today is Sunday. On Sundays, I usually play the piano. My mother usually cleans the house. My father usually reads the newspaper. My sister usually reads story-books.

1.What day is it today?

A Monday.

B Tuesday.

C Thursday.

D Sunday.

解析：选D。D细节理解题。根据“Today is Sunday.”可知，今天是周日。故选D。

2.The writer (作者) ________ on Sundays.

A play the piano

B play football

C play basketball

D play the guitar

解析：选A。A细节理解题。根据“On Sundays, I usually play the piano.”可知，周日，作者经常弹钢琴。故选A。

3.Who cleans the house?

A The writer.

B The mother.

C The father.

D The brother.

解析：选B。B细节理解题。根据“My mother usually cleans the house.”可知，是作者的母亲打扫房间。故选B。

4.Who reads the newspaper?

A The mother.

B The father.

C The sister.

D The brother.

解析：选B。B细节理解题。根据“My father usually reads the newspaper.”可知，是作者的父亲读报纸。故选B。

5.What does the sister do on Sundays?

A Going shopping.

B Drinking water.

C Reading books.

D Doing sports.

解析：选C。C细节理解题。根据“My sister usually reads story-books.”可知，作者的姐姐经常在周日读故事书。故选C。