—Sorry, do you mind if I smoke here?
—Yes, _______.
| A．you could | B．go ahead | C．I do | D．my pleasure |
It was not until midnight __________ they reached the camp site.
| A．that | B．when |
| C．while | D．as |
His album won several awards at the music festival，__________ was beyond his wildest dream.
| A．which | B．that |
| C．where | D．it |
The young man we followed stopped and looked as if __________ whether he was going in the right direction.
| A．seeing | B．to have seen |
| C．having seen | D．to see |
__________ untidy, his bedroom needs doing out.
| A．Look | B．Looking |
| C．Looked | D．To look |
My money __________. I must go to the bank to draw some of my savings out before I've none in hand.
| A．has run out | B．is running out |
| C．has been run out | D．is being run out |