He watches football ________ TV ________ Sunday morning. A. at; on B. on; on C. in; in
—_____do you have a class meeting? — Once a week.
— Is your e-friend in Year_____? — No. He is in the_____Grade.
My best friend always tells jokes to make me_____.
Everyone knows Shanghai is larger than _________ in Jiangsu.
He has some problems _________ his English learning.