In the past, ice used to ______ used to ______ the air in a room.
I can’t stand with Jane in the same office.She just refuses talking while she works.
— Could you spare me some ink? —_______. Here you are.
Nowadays,people get news around them and about the world from ______ media,on TV,by radio,in the newspaper or on the Internet.
In China, __________ pressure to pass ________ exams gives students the impression that learning comes from textbooks.
The study of natural history is not something to be left to biologists. In fact, their capacity _________ the time they can spend away from their offices is very limited.