One of the important differences between Japanese and Americans is that Japanese tend to choose a safe course in life, while Americans choose to explore and challenge life.
They must be Americans.
You are an American boy.
He is an American to the backbone.
Are you American or French?
He must be an American.
He is not an American but an Englishman.
We are not Americans.
Is he American?
What are Americans overlooking?
Aren't they Americans?
He is an American.
Are they American?
I am an American.
I am American.
Isn't he an American gentleman?
He is not an American but a Frenchman.
I took her for an American.
There're many rich Americans. On the other hand some Americans are very poor.