—I have been waiting for you so long.
—Sorry, I have been in the library, _______ my friend look for some books.
| A．helped | B．helping | C．to help | D．help |
In a physical change no new substance is formed，__________ in the composition of matter.
| A．nor does any change take place |
| B．nor any change takes place |
| C．not any change takes place |
| D．either any change takes place |
The mayor will __________ the prizes among the winners.
| A．send | B．spread |
| C．distribute | D．hand |
It's estimated that nearly 70% prisoners __________ from the prison located in that coastal city.
| A．got off | B．got away |
| C．got through | D．got out |
In our childhood, we were often ________ by Grandma to pay attention to our
table manners.
| A．demanded | B．reminded |
| C．allowed | D．hoped |
________ the present unemployment continue, the society would face a more
troublesome situation.
| A．Would | B．Should |
| C．Might | D．Could |