Ellen was a painter of birds and of nature，________，for some reason，had withdrawn from all human society.(2012·浙江，17)
| A．which | B．who | C．where | D．whom |
___________ by thick bamboo, the cottage is hard to find.
| A．Surrounding | B．Being Surrounded | C．Surrounded | D．having surrounded |
He has ____________ himself to be innocent (无罪的).
| A．checked | B．realized | C．confirmed | D．showed |
Everybody in our class admires Lily, for she has a __________ for playing the piano.
| A．present | B．gift | C．ability | D．power |
__________ you’ve got a good chance, you should make full use of it.
| A．Now that | B．After | C．Although | D．As soon as |
. _________ is known to us all is that 2012 Olympic Games will take place in London.
| A．It | B．What | C．As | D．Which |