He wondered if he could slip out of the lecture hall without anyone______.
| A．noticing | B．noticed | C．to notice | D．being noticed |
I’ve won a holiday for two days to Florida. I ______ my mum.
| A．am taking | B．have taken | C．take | D．will have taken |
Hundreds of jobs ______ if the factory closes.
| A．lose | B．will be lost | C．are lost | D．will lose |
----Now that you like the computer so much. Why not buy it?
---Well, I can’t afford ______computer.
| A．that expensive a | B．a that expensive |
| C． that an expensive | D．an expensive that |
He has got himself into a dangerous situation ______ he is likely to lose control over the plan.
| A．where | B．which | C．where | D．why |
______, the concert began.
| A．The listeners having taken their seats | B．Having taken their seats |
| C．Having taken their places | D．Taking their seats |