Why many adolescents (青少年) have trouble communicating with their parents lies in _____we call “generation gap.”
Mr Green asked Lily ______ she had written to her father _____.
---- Do you know our town at all?---- No, this ______ the first time I ______ here.
It was _____ terrible earthquake and _____ number of people who were killed reached more than 20,000.
---- I’m going to Betty’s birthday party. Bye-bye, Mom. ---- ____, baby.
He is a kind-hearted boy and he will come to the Old Folks' Home whenever __________.