Students should be encouraged to use _________ Internet as _________ resource.
| A．不填; a | B．不填; the |
| C．the; the | D．the; a |
By now we’ve (already) nearly stopped writing to each other .
But ______we kept in touch regularly .
| A．all the time | B．at times | C．at one time | D．In no time |
No matter how the enemy frightened him ,he ______say a word .
| A．did not | B．could not | C．might not | D．would not |
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 |
______I used to go mountain—climbing every summer .
| A．at a time | B．at one time | C．At times | D．At the same time |
Liping works very hard at his lessons .He didn’t get the first place in the exam ,_______.
| A．though | B．yet | C．however | D．although |