Explanation:
Cancer is considering abnormal cell growth that can spread to some parts of the body and it is a group of many diseases. It is not the same as tumor because tumor can spread and abnormal cells of cancer can.
Some symptoms that people can have are bleeding, cough, heart pounding, weight loss and pain in many parts of the body.
Those signs can indicate also other diseases so people should go to a doctor if they are suspecting something.
There are over 100 types of cancers in the world and its cure is long and hard journey.
Some of the factors are alcohol, tobacco, poor diet, poor physical activity, stress and many infection such as hepatitis B and C, Helicobacter pylori and more.
I would say:
The past passed very quickly.
Agreed because the other ones wouldn't make sense
