27. Nearly four hundred supermarkets in Beijing are preparing to dim their lights ________ the "Earth Hour 2010" on Saturday night.
| A．honor | B．honoring | C．to honor | D．having honored |
Don't blame him, ___?
| A．will you | B．shall we | C．do you | D．don't you |
It’s been raining all day long , ___?
| A．is it | B．isn't it | C．hasn't it | D．don’t you |
Serveral pairs of old shoes need ___.
| A．washed | B．to wash | C．washing | D．to being washed |
---____? ---The famous singer Sog Zuying will come to our city.
| A．What’s the matter | B．What’s that | C．What’s new | D．What about |
The North Pole is ____ all the white snow here and there all the year round.
| A．full of | B．fill with | C．covered by | D．covered with |