The study surveyed 500 families and found that the main ________ problem people suffered was tiredness, followed by loneliness and anxiety.
Be ______ — you can't expect me to finish all this work in so little time. (2012 .山东)
He made another wonderful discovery, _____ of importance to science.
His glasses, _____ he was like a blind man, fell to the ground and broke.
There are two buildings, _____ stands nearly a hundred feet high.
Eric taught folk music in a local school for one year, _____ he spent some time abroad studying jazz. A. after that B. after which C, after it D. after this