Only when he read the newspaper _____ 
the US President Obama would deliver a speech in his university．
| A．he knew | B．he had known |
| C．had he known | D．did he know |
—Hey, did you enjoy the vacation in London?
—No．Our vacation was totally ruined; not only was the food terrible but the weather was awful .
| A．in the meanwhile | B．as well |
| C．as a matter of fact | D．in addition |
Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China．
| A．would be | B．would have been |
| C．might be | D．should have been |
With the price of pork and eggs quickly, CPI has become a hot phrase among Chinese．
| A．climbing | B．climbed | C．to climb | D．climb |
In 18-minute address to students across America on September 8, 2009, President Obama told American students to make most of their education．
| A．an; the | B．an; a | C．the; the | D．the; a |
—Tony, I really appreciate your wonderful performance in the concert．
—_________．
| A．I've practiced for ages | B．Well, it's just so-so |
| C．No, I don't think so | D．Thank you very much |