Lessons can be learned to face the future, ________ history cannot be changed.
| A．though | B．as | C．since | D．unless |
Samuel can’t help having a big nose---it is___of him to be curious about other’s affairs
| A．typical |
| B．constant |
| C．considerate |
| D．unique |
These product are very cheap because the industry___the raw materials,the prices of which remain low
| A．takes on |
| B．depends on |
| C．stands on |
| D．keeps on |
—How long are you staying?
—I don’t know.___
| A．That’s OK |
| B．Never mind |
| C．It depends |
| D．It doesn’t matter |
Having been ill in the bed for nearly a month,he had a hard time___the exam
| A．pass |
| B．to pass |
| C．passed |
| D．passing |
The president passed___shortly after his election
| A．off |
| B．over |
| C．on |
| D．away |