—How many people are still leading ____ life under ___ poverty line in the world?
—Perhaps one fourth.
| A．a, the | B．a, a | C．不填，不填 | D．the, 不填 |
Mary went to the box office at lunch time, but all the tickets __________ out.
| A．would sell | B．had been sold | C．have been sold | D．was selling |
News came from the office __________ Wang Lin had been admitted to Beijing University.
| A．which | B．what | C．that | D．where |
Whenever I met her, __________ was very often, she greeted me with a sweet smile.
| A．who | B．which | C．when | D．since |
Peter was so excited __________ he received an invitation from his friend to visit them.
| A．where | B．that | C．why | D．when |
I have reached a point in my life __________ I am supposed to make decisions of my own.
| A．which | B．where | C．how | D．why |