You can come here to ask me _____ if you have any questions.
| A．at one time | B．at your time | C．at any time | D．all the time |
__ we have no disagreement on the plan, let's bring the discussion to an end.
| A．Unless | B．Until | C．Although | D．Now that |
With the rapid development of the city, he can hardly find the place __ he used to play with his childhood friends.
| A．where | B．when | C．there | D．which |
— I'm leaving tomorrow.
— Oh, what a pity! I won't be able to see you off. I __ a tele-conference the whole morning.
| A．have | B．am having | C．will be having | D．will have had |
__ is not possible that Bob can win the first prize in the competition.
| A．This | B．That | C．It | D．What |
— How come you are here?
— I came here for nothing else but to see you ____.
| A．by chance | B．in addition | C．at random | D．on purpose |