—Is that Dec．21,2012 is the end of the world true?
—Definitely not, but ______ must be paid to global climate change．
| A．contact | B．care | C．attention | D．influence |
_______, her hands shook constantly and violently.
| A．Knowing her son killed in the mine | B．When she knew her son was killed in the mine |
| C．Known her son killed in the mine | D．She knew her son killed in the mine |
For a moment nothing happened. Thenall shouting together.
| A．voices had come | B．came voices |
| C．voices would come | D．did voices come |
I was at a loss what to do next when an excellent idea suddenly` _______ me.
| A．knocked at | B．occurred to | C．happened to | D．knocked down |
One of the reasons____ he explained to us was ______ he had dreamt of doing so.
| A．why; that | B．that; that | C．why; because | D．that; because |
—Why! I have nothing to write about. _______ that you want me to say?
—Your summary for this term and holiday schedule.
| A．What is it | B．What it is | C．What are they | D．What they are |