The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
Which do you enjoy your spare time, playing cards at home or taking a walk in the park?
The party was successful, but we thought it a pity not you.
Sunday, rather than at home, I preferred .
With a lot of problems , the VS troops are having a hard time in Iraq.
16. ---The farmer president was caught at last. ---Really? Where himself?