As the road to the airport is under reconstruction, we'd better ________ early to avoid the traffic jam.
| A．pay off | B．set off |
| C．put off | D．take off |
_____ of you comes first will get the ticket.
| A．Which | B．Whichever |
| C．Who | D．whatever |
_____ worries me is _____ we’re going to pay for all this.
| A．It, that | B．That, how |
| C．What, how | D．As, that |
I’m afraid we can’t have coffee; there’s _____ left.
| A．nothing | B．none |
| C．no one | D．no any |
The classroom is almost empty, where is _____?
| A．someone | B．anyone |
| C．everyone | D．no one |
Don’t go to _____ places where there is no fresh air.
| A．such | B．so |
| C．those | D．which |