It has been proved __________ eating vegetables in childhood helps to protect you against serious illnesses in later life.
| A．if | B．that | C．when | D．because |
he worked hard, he still failed to finish the task in time.
| A．Although |
| B．Unless |
| C．Even after |
| D．Apart from |
When he was young, he used to hard at his lessons.
| A．devote to working |
| B．devote himself to working |
| C．be devoted to work |
| D．devoted to working |
They are just human creatures in a human environment, trying to themselves to a social situation
| A．adopt |
| B．adapt |
| C．adjust |
| D．admit |
_ much difficulty we may meet, we will finish the work in time.
| A．However |
| B．Whatever |
| C．Whichever |
| D．Though |
The moment the ambulance（救护车）came to the hospital, the sick man to the operation room.
| A．rushed |
| B．was rushed |
| C．was run |
| D．was dashed |