People living in the desert choose to keep their ancient lifestyles and customs, _______people in cities throw away their cultural traditions.
The glass door have taken the place of the wooden ones at the entrance, _____ in the natural light during the day.
I’d rather have a room of my own , however small it is , than _____ a room with someone else.
Have you ever listened to the song Yesterday once more, ________ singer died in her early years?
He is said ______ in the supermarket when he was doing shopping yesterday.
Pieces of bamboo or wood ________ books between 2nd and 5th century AD. A. used to formedB. used to form C. were used to formD. used to beforming