He made a wonderful discovery, ___ of great importance to science.
| A．which I think is | B．which I think it is | C．which I think it | D．I think which is |
She won the first prize,though______of us______it.
| A．no one;expected | B．none;had expected |
| C．nobody;expecting | D．none;would expect |
Great changes______in the mountain village in the last few years.For example,electric lamps______of oil ones.
| A．have been taken place;have taken place |
| B．have taken place;have taken the place |
| C．have taken the place;have taken place |
| D．have taken the place;have taken the place |
This shirt______you very well but it is______me.
| A．fits for;not fit for | B．fits;not fit for |
| C．fits;not fit | D．fits for;not fit |
On the long journey he______to be an amusing companion.
| A．proved him | B．proved | C．proved himself | D．proves |
I had a lot of trouble______the book you wanted.
| A．on finding | B．in finding | C．to find | D．at finding |