— Is that the country clinic you often refer to? — Right,just the one ______ you know my father used to work for 10 years
--Do you know when the Chinese custom_________ from? --It's hard to say. But its characteristics__________ the Tang Period.
--You went late the stadium yesterday evening, didn't you? --Yes, my wife was a little late _________ the supper.
After you have used the dictionary, please just put it back _____it belongs.
It is usually not quite cold in this area in March, but sometimes temperature ____be very low.
--__________ was it_________ they discovered the entrance to the underground place? --Totally by chance.