Li Ming studies hard he can pass the exams.
—Would you like to go hiking with us?—Sorry. My grandmother is ill. I'll go to her.
—What did the teacher say?—The teacher told us at the Capital Museum on time.
—Is that Jack speaking?—No. He isn't in right now. He to the cinema.
Mobile phones are very common now and they are than before.
— have you been like this?—For a week.