The students left the room _______all the lights on.

The teacher, along with 5 of her students, ________talking with a foreign teacher in the English Corner at that time.

Planning so far ahead _____ no sense — so many things will have changed by next year.

Listening to loud music at rock concerts _____ caused hearing loss in some teenagers.

Such poets as Shakespeare _____ widely read, of whose works, however, some _____ difficult to understand.

The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.

One third of the country _____ covered with trees and the majority of the citizens _____ black people.

The students together with the head teacher _________ visit the Chime Long Paradise.

A professor and a writer _________present at the meeting.

The manager said, “Every means _____ tried, but there is no result.”