COVID19（新冠病毒）has stopped people from working for several months.In recent days，many people have returned to work. （1）

F

F

Here is some advice.
    When commuting（通勤）
    Avoid taking public transport. （2）

A

A

If you have to take public transport，you shall wear a face mask（口罩）through the ride and try to avoid touching objects in the vehicles（车辆）with your hands.
   Entering the workplace
   Wear a face mask and receive body temperature check before entering the office building.You must pass the body temperature check before being allowed in. （3）

E

E

If you have signs such as fever，please go to the fever office of a hospital at once.
    Using a lift
    Avoid using the lift if you are going to or leaving lower floors，Use the stairs instead.Stand clear of lift doors while waiting. （4）

C

C

    In offices
    （5）

D

D

Do it three times a day for 15 minutes to half an hour each time.You can only get infected（感染的）if the virus builds up in large numbers.Fresh air can stop the virus from building up.
    Keep healthy habits such as eating a healthy diet，exercising and getting enough sleep.They can improve your immunity（免疫力）.

A.Try to walk，cycle or drive to your office instead.
B.Listen to music every day.
C.Do not stand face to face with people while waiting.
D.Open windows to let fresh air in during the day.
E.Wash hands in time.
F.What steps of prevention（预防）and control are needed？