单项选择题

Questions 17 to 20 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.

One of the things the speaker does NOT remember about the street is that ______.

A.garbage cans were kept from the street
B.cars were moving slowly in the street
C.policeman patrolled the street
D.pedestrians passed by