--- You ought to have given them some advice.
--- , but who cared what I said?
| A．So I ought to | B．So ought to I | C．So I did | D．So did I |
Never should we forget the war and sufferings _____ caused to the people.
| A．it | B．which | C．that | D．what |
As soon as his teacher begins lecturing, he begins to doze off, not intentionally but _____.
| A．personally | B．randomly | C．habitually | D．unconditionally |
The Chinese lunar New Year usually _____ two records: the world's most watched television gala show, and its busiest telecommunications network.
| A．develops | B．witnesses | C．establishes | D．launches |
Nowadays certain limit should be set on use of cars to reduce air pollution.
| A．/; the | B．a; the | C．the; / | D．the; the |
All teachers received warmest congratulations on Teachers’ Day. They felt ________.
| A．an honour that they were teachers | B．that they were teachers an honour |
| C．it an honour when they were teachers | D．it an honour that they were teachers |