. All of the guests ___________ by 9 o’clock , but the host _____________ until 15 minutes later .
Robert is said abroad, but I don’t know what country he studied in.
He never said that he was good at mathematics, ?
--- How many subjects are you good at? --- Three,, English, Chinese and politics.
He was in hospital only because he was too excited at the fact ______ he won the first prize in the contest.
--- Shall we meet tonight? --- Sorry,l’m busy. How about day?