The professor sometimes makes remarks that are not __________ to the topic.
| A．associate |
| B．relevant |
| C．equal |
| D．independent |
The purse found on the playground matches the ____ by Mary, so it must be hers．
| A．direction | B．description | C．expression | D．instruction |
—Quite a lot of students failed in the math exam．
—Exactly．It is ____ their abilities．
| A．within | B．over | C．against | D．beyond |
—Those scientists invented a robot to care for kids!
—It’s not surprising．They ____ wonders all the time．
| A．worked | B．were working | C．work | D．have been working |
Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists．
| A．its | B．which | C．whose | D．those |
Because ____ unemployment is very high at present, it’s not easy for a fresh graduate to find ____ satisfying job as he wishes．
| A．the; / | B．/; a | C．an; a | D．an; the |