1 . 听下面一段独白，回答以下小题。
1. How many minutes is the Green Line running late?

A．10.

B．15.

C．20.

2. Which track will the Yellow Line now leave from?

A．Track 6.

B．Track 7.

C．Track 8.

3. What should passengers do if they are taking the Red Line?

A．Get a new ticket.

B．Wait for the next train.

C．Go to a different location.

4. What happens to the trains on the White Line after 3:45 today?

A．They will be canceled.

B．They will be delayed.

C．They will be on time.