单项选择题
—You've booked on a two o'clock flight.—What chance()of taking a later plane
A. there is B. it is C. is there D. is it
单项选择题 This is the same article () the professor recommends for our extra reading.
单项选择题 --Whom do you want to see at the moment--The man () Mr. zhang.
单项选择题 --Will you please spare me a few minutes now -- (). But Ill be free in half an hour.
