On hearing a great noise, Mike looked forward through the window _____ what happened outside the room.
| A．to seeing | B．to see | C．seeing | D．to have seen |
We all know the truth __________ he is telling a lie.
| A．what | B．which | C．that | D．where |
—What made her so sad at that time? She kept crying all the time.
— __________ to the ball.
| A．Without being invited |
| B．Not be invited |
| C．Be not invited |
| D．Not having been invited |
We are ready to start at short __________.
| A．information | B．advice |
| C．message | D．notice |
I invited her over to my house and showed her the ring, but __________ she left, I noticed the ring missing.
| A．the moment |
| B．the moment when |
| C．when the moment |
| D．at the moment when |
Some areas, __________ their severe weather conditions, are hardly populated.
| A．due to | B．with regard to |
| C．but for | D．in spite of |