It's an eitheror situation —we can buy a new car this year or we can go on holiday but we can't do ________.
There must have been a large number of tourists in Sanya during the past Spring Festival, __________?
he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy.
Time is pressing.You cannot start your task _____ soon.
The room ______ 10 metres across is large enough for a single man to live in.
—I wonder whom you are waiting for. —The policeman the traffic accident.