After ________in the research for so many years，the scientist succeeded in finding the result at last.
| A．buried | B．being buried | C．having buried | D．having been buried |
The children's excitement______as Christmas drew near．
| A．try | B．grew | C．is growing | D．having tried |
The first time I ____ Todd, he ____ to some students at the English corner.
| A．had seen; was talked | B．saw; talked |
| C．had seen; talked | D．saw; was talking |
Charles entered New York University in 2009 and one year later ________to University of London as an exchange student.
| A．sent | B．had sent | C．was sent | D．had been sent |
—Sarah went to the party．
—Really? I_______ her if I had gone with you．
| A．met | B．had met | C．would met | D．would have met |
—I’m planning to go to Kingdom of Cambodia this summer vacation. I think the trip will be exciting.
—____, as it’s the rainy season then.
| A．Yes, it will | B．Of course not |
| C．You can say so | D．It’s hard to say |