Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.
| A．which | B．that | C．what | D．where |
（2013·安徽卷)It be 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 I go to the Rolling Stones concert
| A．must |
| B．would |
| C．should |
| D．might |
— It rained cats and dogs this morning. I’m glad we took an umbrella.
— Yeah, we would have got wet all over if we _______.
| A．hadn’t |
| B．haven’t |
| C．didn’t |
| D．don’t |
No one _____ be more generous; he has a heart of gold.
| A．could | B．must | C．dare | D．need |
If he had spent more time practicing speaking English before, he _____ able to speak it much better now.
| A．will be | B．would be | C．has been | D．would have been |