The teacher came to the classroom and demanded ____ what had happened.
______ Chief Engineer, as his family had expected, made his father happy and proud.
Storm chasing is so dangerous that some chasers are often hurt in accidents ______ by driving in a heavy rain.
Believe it or not, crying is a way you can imagine ______ pressure.
All the clothes donated by the citizens need cleaning thoroughly before being sent to the earth-stricken area, ______ ?
My friend has returned from the UK. She ______ at Oxford for four years, during which we communicated with each other on the Internet.