Only after a person has realized the importance of knowledge, ____________.
| A．he can devote himself to learn |
| B．he may devote himself to learning |
| C．can he devote himself to learn |
| D．can he devote himself to learning |
If you put too many potatoes in that paper-bag it will _____.
| A．fail | B．explode | C．crack | D．burst |
One-room schoolhouses can still be found in _____ areas where there are no other schools for many miles.
| A．disposed | B．deserted | C．isolated | D．abandoned |
I'm afraid you have no _____ but to come along with us.
| A．possibility | B．permission | C．choice | D．selection |
I shall never beat John at tennis; we are clearly not in the same _____.
| A．set | B．band | C．group | D．class |
As soon as Charles had _____ a little from his surprise, his one thought was to get away.
| A．returned | B．absorbed | C．dissolved | D．recovered |