They say “____”, but there is every chance that Usian Bolt will strike again later this week, when he will try to break the 200 meters world record he set in Beijing.
| A．A little knowledge is a dangerous thing |
| B．Lightning never strikes twice in the same place |
| C．Where there is a will, there is a way |
| D．Failure is the mother of success |
----- Can you use chopsticks, John?
----- ________ . I once stayed in China for two years.
| A．No problem | B．It all depends |
| C．I’m sorry, but yes | D．You can forget it |
Since the Obama administration took office, the China—US relations ________ positive development thanks to joint efforts of both sides, President Hu said at the Nuclear Security Summit in Washington, April,12,2010.
| A．witnessed | B．were witnessed | C．had witnessed | D．have witnessed |
.The other day I was showing the boys the weekly chemistry experiment when, ________ I knew it, the mixture was bubbling over everywhere.
| A．if | B．before | C．though | D．unless |
It was not until all the milu deer ________ that we realized we should build a natural park to protect them.
| A．died off | B．died away | C．died out | D．died down |
Do you remember a certain occasion ________ you were in trouble and at that moment I gave you a hand.
| A．when | B．which | C．why | D．where |