It was in the office my sister works I met the new manager.
| A．that; that | B．where; where | C．that; where | D．where; that |
______ to smoking for a considerably long time, he has much difficulty quitting it.
| A．Having been addicted | B．Being addicted |
| C．To have been addicted | D．Having addicted |
Was it through Mary, ______ was working at a high school, ______ you got to know Tom?
| A．who; who | B．that; which |
| C．who; that | D．who; which |
The father, ready to retire at an early age, hoped that his eldest son would ______ the family business.
| A．take over | B．look into |
| C．take up | D．look through |
My sister-in-law is the ______ of the information, so it cant be false.
| A．resource | B．source |
| C．birthplace | D．data |
--I believe that more effective measures have to be taken before we can breathe cleaner air.
--______. Air pollution has become too serious a problem.
| A．I don’t like it |
| B．I am with you on that |
| C．I dont care about it |
| D．I cant agree with you |