Написать на языке правило артикля с названиями

с объектами и названиями всегда пишется определённый артикль the

i have been to paris. i was there two months ago. i visited louvre and versaille. i saw eiffel tower and went to champs elysees.

1.) we shouid eat? healthy food.

2.) today the streets aren't as clean as they used to be.

3.) it's the worst mistake he has ever made.

4.) this   man is taller than that one.

5.) asia is larger than   australia.