A: When do you usually have dinner? B: ____6:30____the evening.
—Why do you get up so early in the morning, Tracy?—I generally make it a to be up by 7 to read English.
—Could you tell me____?—Sorry,I have no idea.
—The problem is too difficult,can you show me _____,Wang Le?—Sure.
—What do you think of Ann?—Ann is so careful that she always goes over her exercises to ______ there are no mistakes.
—_____will your sister be back ?—In about two hours.