This is _______ story I’ve told you about．Isn’t it _______ interesting one?
| A．the; the | B．a; an | C．the; an | D．an; the |
22. Is this factory _____ you visited the other day？
| A．where | B．that | C．the one | D．when |
21. In recent years _____ global warming is becoming ____concern for people all over the world.
| A．the; the | B．/; a | C．/; / | D．the; / |
Nowadays people have to pass various tests for professional __________ so that they can be qualified for a well-paid job.
| A．certificates | B．permission | C．admission | D．Perseverance |
There is an obvious __________ between the cultures of the West and East.
| A．content | B．contrast | C．contract | D．Contact |
We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.
| A．grounds | B．reason | C．cause | D．Purpose |