—Mrs White, why are you standing here?—I’m waiting for my son. He ___________ back from school.
—He hardly spent any time on his subjects, _________? —_________, so he does badly in his lessons.
________ people have been to the famous ________ mountain.
I don’t know how long they________ .I remember he _______ his wife on a sunny day.
Most boys ___________action films to cartoons, while most girls _______ watch cartoons than action films.
Wheat production _______________30% in the past ten years.