We must apply what we have learned to our daily work because in no case _____ from practice.
| A．should theory separate | B．should theory be separated |
| C．theory should separate | D．theory should be separated |
The pen well, so it ___ well.
| A．is written, is sold | B．is writing, is selling |
| C．is written, sells | D．writes, sells |
Hurry up ___ we ___ miss the train.
| A．and, are about to | B．or, are about to |
| C．or, will | D．and, shall |
We were having evening class ____ the light went out.
| A．while | B．even if | C．as if | D．when |
When I jumped into the river, the water ___very cold.
| A．was fell | B．fell | C．felt | D．was feeling |
Since the project has been ___ on well, you must ___ it on until it is completed.
| A．carrying, carry | B．going, carry |
| C．going, go | D．carrying, go |