Thanks to the application of new farming methods, the out put is now _____ it was before the year 2000．
| A．six times what | B．more than six times of |
| C．larger six times than | D．six times of that |
As the busiest woman in the village, she made _____ her duty to look after all the other people’s affairs in that village.
| A．this | B．that | C．one | D．it |
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 |