ot in the shopping mall, because the air-conditioningsystem ______

obile phone, to be most useful and fashionable, is popular with some teenagers.

That passenger was very impolite to the conductor, ______, of course, made things even worse.

Simon. I hear you are going abroad for further study. Have you decided ______—Next September.

His pale face suggested that he _____ ill and his teacher suggested that he ______to the hospital at once