—We didn't find the Blacks ________ the lecture.—No one had told him about ________ a lecture the following day.
December is the __________ month in year.
--- What is the date today? --- It's _________.
She knows a lot about China as she has been to China ________.
--- May I help you, sir? --- Yes, I bought the TV the day before yesterday, but it ______.
______ the bus until it ______..