We stopped on our way to London for _____.
| A．an or two hours | B．an and two hours | C．one hour or two | D．one or two hours |
The store had to a number of clerks because sales were down.
| A．lay out | B．lay off | C．lay aside | D．lay down |
It is much easier to talk about social change than to .
| A．bring it on | B．bring it about | C．bring it up | D．bring it out |
This is a story completely by him, so don’t rust him.
| A．discovered | B．invented | C．found | D．known |
Historical experience can as a most important source of information.
| A．serve | B．use | C．regard | D．prove |
Have a good rest, you need to your energy for the tennis match this afternoon.
| A．have | B．save | C．hold | D．get |