in the last few years；find one's way to；millions of；in trouble；cut down；lead to；make sure；feed on

（1）Too much food and too little exercise over the holiday season can quickly

lead to

lead to

unwanted weight.
（2）The Great Wall is so well-known a tourist attraction that

millions of

millions of

people visit it every year.
（3）It was my first visit to New York，but I managed to

find my way to

find my way to

the small company.
（4）It is known that the cows and sheep mainly

feed on

feed on

grass.
（5）You must

make sure

make sure

you have locked the door before you leave.
（6）He will be

in trouble

in trouble

if he doesn't obey the traffic rules.
（7）People used to

cut down

cut down

the trees and grew crops on the land.
（8）

In the last few years

In the last few years

，China has made great achievements in environmental protection.