The artist __ the judge gave a prize is the teacher __ I have been taught painting for over three years.
| A．from whom; by whom | B．to whom; who |
| C．whom; who | D．to whom; by whom |
Only by practising a few hours every day ____ be able to master the language.
| A．you can | B．can you | C．you will | D．will you |
Not until I began to work ____ how much time I had wasted.
| A．didn't I realize | B．did I realize | C．I didn't realize | D．I realized |
I want to be left alone ___ things out.
| A．think | B．thought | C．thinking | D．to think |
Before __ the trunk must be checked.
| A．used | B．to use | C．being used | D．to be used |
The young Swede was made ___ a lot of practice before the Napoleon’s inspection.
| A．have | B．had | C．having | D．to have |