My laptop computer, _______ I can’t go on with my work, broke down the other day.

his work these days，hehash’t _____ when to pay a visit to his parents· A．BentOn：decided on B．Worriedabout；turned onC．Facedwith；taken on D．Devotingto；focused on

How Dave — He is fine.

It’s the first time that he has been to Australia, _____? [ ]

____ all of you are top students, only one will be chosen for the coming competition.