The discovery of new evidence led to__________
| A．the thief having caught | B．catch the thief |
| C．the thief being caught | D．the thief to be caught |
Itbe the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may |
| B．couldn’t |
| C．should |
| D．needn’t |
- What are you doing this Saturday?
- I’m not sure, but Igo to the Rolling Stones concert.
| A．must |
| B．would |
| C．should |
| D．might |
I ________ myself more—it was a perfect day.
| A．shouldn’t have enjoyed |
| B．needn’t have enjoyed |
| C．wouldn’t have enjoyed |
| D．couldn’t have enjoyed |
The dooropen , no matter how hard she pushed.
| A．shouldn’t |
| B．couldn't |
| C．wouldn't |
| D．mightn't |
Since nobody gave him any help, he have done the research on his own.
| A．can |
| B．must |
| C．would |
| D．need |