__________she was invited to the ball made her very happy.
| A．If | B．That | C．When | D．Because |
Traditional Chinese medicine is thousands of years old and has developed _______ time．
| A．over | B．in | C．on | D．of |
_______ with the Japanese government, some Chinese people decided not to buy products from Japan any more．
| A．Not satisfying | B．Not having satisfied |
| C．Not satisfied | D．Not to satisfy |
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 |