The heavy fog in London made _______deep impression on us, which was sometimes so heavy that we lost ________sight of everything.
| A．a; the | B．a; 不填 |
| C．the; a | D．the; 不填 |
Not everyone is equal to the task because it special skills and much patience．
| A．calls for | B．calls out | C．turns into | D．turns up |
The experiment turned out to be very successful， was more than we could expect．
| A．what | B．that | C．which | D．this |
Some medicine，when wrongly，can kill a person
| A．take | B．taking | C．taken | D．to take |
The fire fighters soon got the fire in the building
| A．under attack | B．under control |
| C．under construction | D．under way |
The shopkeeper said that thief was a boy with blown hair．
| A．the，a | B．the，不填 | C．a，不填 | D．a，a |