The number of people in the world ______ about 6 billion and large quantities of waste ________ each year.
In ________ old society many young women died by so strange and cruel ________ custom.
_____different life today is ________what it was 30 years ago
All the dishes in this menu, _____ stated otherwise, will serve two to three people.
——Mom,what did your doctor say? —— He advised me to live _____ the air is fresher. in where B. in which C. the place where D. where
So absorbed _______ in her work that she didn’t realize it was time that she picked up her daughter.