This is my face mask. I always have it with me. My parents tell me to wear my mask whenever I go out. They also wear masks to protect (保护) themselves from getting sick. My mask comes in different colors. But I like the blue mask of mine. 

1.Face mask is used to _____.

A wear

B eat

C watch

D hear

解析：选A。A细节理解题。根据第三句的“My parents tell me to wear my mask”可知口罩是用来“戴”的。wear意为“穿，戴”。故选A。

2.Masks keep us from ______.

A being safe

B being cold

C being sick

D being thin

解析：选C。C细节理解题。根据“protect themselves from getting sick”可知（戴）口罩可以防止生病。故选C。

3.My mask have _____ colors.

A the same

B different

C beautiful

D special

解析：选B。B细节理解题。根据“My mask comes in different colors.”可知“我”的口罩有“不同的”颜色。故选B。

4.I like _____ masks.

A red

B black

C white

D blue

解析：选D。D细节理解题。根据最后一句“But I like the blue mask of mine.”可知“我”喜欢蓝色的口罩。故选D。