_______, he went upstairs to sleep without supper.
| A．He was tired | B．As he was tired |
| C．Tired as was he | D．As tired as he was |
Mary felt sad over the loss of photos she had shot in Australia, ______ that was a memory she especially treasured.
| A．as | B．which | C．when | D．where |
Have you ever listened to the song Yesterday once more, ________ singer died in her early years?
| A．its | B．it’s | C．whose | D．which |
The man I ______ yesterday in the street is my manager.
| A．paid a visit | B．had a talk | C．met | D．dropped |
Students are encouraged to _________ the design competition for robots at the university.
| A．take part | B．operate | C．join to | D．participate in |
The plan has to be _______ to meet the real situation.
| A．adjusted | B．adapted | C．produced | D．refounded |