He did poorly in the exams, ___ how hard he tried for them.
| A．to consider | B．considering | C．to regard | D．regarding |
After I went abroad for further study, _______ of my parents lived with me．
| A．none | B．neither | C．either | D．any |
When Helen saw her tutor nod _______ to her, she calmed down and went on with her performance．
| A．encouragingly | B．amazingly | C．interestingly | D．willingly |
Before joining the Department of Defense, Mr． Panetta _______ as director of the CIA from February 2009 to June 2011．
| A．would serve | B．served | C．was served | D．had been served |
What _______ pity that you must leave now! It is such _______ great fun to have dinner with you．
| A．a; a | B．a; the | C．/; a | D．a; / |
_______ the Internet is of great help, I don't think it's a good idea to spend too much time on it.
A If B While C Because D As