Studies have long shown that our heart rates and anxiety levels rise and fall ______ on the speeds of the music we hear.
John received an invitation to dinner, and with his work , he gladly accepted it.
several time, the young scientist still kept on making his experiments.
--- Lucy doesn’t seem to be what she was. --- No.so much in the war has made her more thoughtful.
--- What do you suppose made her worried? --- a gold ring.
--- The English exam is not difficult, is it? --- . Even Tom to the top students failed in it.