American fast food seems to be the most popular in the world._ _ _ American fast food is the most popular in the world.

问题描述:

American fast food seems to be the most popular in the world.
_ _ _ American fast food is the most popular in the world.

It seems that American fast food is the most popular in the world.
It seems as if / as though American fast food is the most popular in the world.

It seems that American fast food is the most popular in the world.