—You can't imagine ________ fantastic fun online chatting is.
—Really？But it may cause a lot of trouble sometimes.
| A．what | B．how | C．why | D．so |
Lily was talking to our teacher about examination, when suddenly Tom _______.
| A．cut off | B．cut out | C．cut up | D．cut in |
While I_________that he is an excellent leader,I don’t think he can do a good job in this company because he is too careless.
| A．reflect | B．recommend | C．acknowledge | D．urge |
The two Chinese scientists have made a wonderful discovery, which marks a major _______ in the basic research in the field.
| A．reform | B．approach | C．boundary | D．breakthrough |
The incident caused a hot discussion on the Internet, but the local government had no immediate _______ on it.
| A．adjustment | B．commitment | C．comment | D．document |
The young violinist is very excited because the concert given by him has never been _____.
| A．successful | B．more successful |
| C．most successful | D．the most successful |