—What were you doing when she dropped in?
—I for a while and_________ some reading.
| A．was playing; was going to do | B．played; did |
| C．had played; was going to do | D．had played; did |
I can’t remember the name of the park _______ we had a picnic then.
| A．which | B．that | C．when | D．where |
Great attention must be paid ______ education, especially in the poor area.
| A．develop | B．to develop | C．developing | D．to developing |
---Is this car _________ you bought the other day?
---Yes, I like it very much.
| A．which | B．the one | C．whose | D．where |
Miss Li___ as a secretary for five years in the company, and now she is general manager of it．
| A．served | B．has served | C．had served | D．serves |
It is reported that between the year 1550 and 1950 about one kind of living things___each year .
| A．died out | B．died of | C．died from | D．died down |