【多选题】When a station officer is guiding passengers to pass the ticket gates,what should he or she do?
A.
If a very old lady comes, he or she should advise her to stay close to his family or help her pass the gate and go down the platform.
B.
If a passenger is eating and passing the gate at the same time, he or she should come up to stop the passenger and explain to him that no eating and drinking allowed in the subway.
C.
If a passenger in wheelchairs comes, he or she should advise him to take the lift for his safety.
D.
If a lot of passengers gather at the ticket gate, he or she should guide the passengers to form lines and touch in one by one.