Syntax ganjil 2020 A

Colds last seven days on average.
Colds last seven days on average, don’t they?
Do colds last seven days on average?

Would you mind helping me with this?
Can you gissa hand [= give me a hand]?

What is a platelet? A platelet is a disc-shaped element in the blood that is involved
in blood clotting.
One kind of blood cell is a disc-shaped element that is involved in blood clotting.
This is called a platelet.