___ smoking here will be fined.
| A．Who | B．Whoever | C．Anyone | D．Who ever |
________ Mayan（玛雅）Calendar marks the end of the earth around December 22, 2012, which has caused ________ great panic among people.
| A．The; a | B．A; the | C．不填; 不填 | D．不填; a |
— Shall we go out for a walk?
— Oh, ________.
| A．that’s right | B．it’s a pleasure |
| C．that’s fine | D．you’re welcome |
— My son spoiled your carpet. Let me buy you a new one.
— ________.
| A．No, it is out of question | B．No, do as you please |
| C．No, it’s too much for you | D．No, it’s not important |
Natural disasters occur at ________ times, so it is always difficult to warn people in advance.
| A．random | B．exact | C．flexible | D．absolute |
________ when your ticket has been checked will you be allowed to take the plane.
| A．Just | B．Only | C．Still | D．Yet |