Quzhou is ______ most comfortable city, where you can visit a great many interesting places, such as______ mysterious Longyou Grottoes．
| A．a; the | B．a; 不填 | C．the; a | D．不填; the |
He 20 dollars for his old bike the other day.
| A．paid | B．took | C．spent | D．offered |
A dark blue design will not on a blackboard.
| A．clear up | B．go up | C．show up | D．pick up |
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 |