单项选择题


Questions 21—23 are based on the passage about malls in the US. You now have 15 seconds to read Questions 21—23.
Which of the following is NOT a reason why people like mails

A.They feel safe because malls have police stations or private security guards.
B.They are served free meals after shopping.
C.They can do almost everything at malls.
D.The weather inside is always fine.