单项选择题
() you have finished your work, you are free to do what you like.
A. Now that B. Ever since C. For now D. By now
单项选择题 —You've booked on a two o'clock flight.—What chance()of taking a later plane
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.
