For many Beijingers, dreams of living in ___________ green area are becoming___________ reality.
| A．a; a | B．the; the | C．不填; 不填 | D．不填;a |
Is this the reason _____ at the meeting for his carelessness in his work?
| A．what he explained | B．why he explained | C．he explained | D．how he explained |
______ in his studies, he didn't know that all the others had left.
| A．Buried | B．Burying | C．Having buried | D．Bury |
We had much difficulty __________ home in the snowstorm.
| A．walked | B．walk | C．walking | D．to walk |
“Be careful, do not stand ___________ to the fire, Jim.” Mrs. Thompson said to her little son.
| A．closed | B．closely | C．close | D．closing |
Several pages were found _________ when the book _________ me.
| A．missing; returned | B．gone; was returned to |
| C．lost; was returned | D．disappeared; was returned to |