As is known to us all,_______travels much faster than .
| A．lights; sounds | B．light; sound |
| C．sound; light | D．sounds; lights |
_____ not to miss the flight at 15:20, the manager set out for the airport in a hurry.
| A．Reminding | B．Reminded | C．To remind | D．Having reminded |
According to the literary review, Shakespeare ____ his charities live through their language in his plays. 
| A．will make | B．had made | C．was making | D．makes |
It seems that living green is ______easy and affordable. A small step masks a big difference.
| A．exactly | B．fortunately | C．surprisingly | D．hardly |
The World Health Organization gave a warning to the public without any ______when the virus of H1N1 hit Mexico in April, 2009.
| A．delay | B．effort | C．schedule | D．consideration |
The Somali robbed frequent attacks on the sea urged the United Nations to_____all nations to take immediate action.
| A．fight for | B．apply for | C．call on | D．wait on |