get separated, stay in touch with, regret to, make friends, take a message
work background listen purpose interview
answer play tell miss silent
successful stamp sailing interested dollar
bright，glue，treasure，circle，explain
in person, look out of, at the age of, do research on, close to, once a week
in silence, day by day, worry about, turn back, talk with
take up, point out, at the top of, be famous for, go for a swim