________ three years and a half since they began to build the great bridge.
I AM SOMEBODY is an ______ movie, and I am ______ in it.
It is not polite(礼貌) to ______ your parents.
I am ______ tired ______ I want to sleep.
I work ______ a teacher in No.1 Middle School.
Helen is ______ American girl and she often plays ______ badminton.