They are __ the old houses in order to set up a new teaching building.
| A．tearing down | B．tearing up | C．putting up | D．putting down |
—Did you see who the driver was?
—No, so quickly_________ that I couldn’t get a good look at his face.
| A．does the car speed by | B．the car sped by |
| C．did the car speed by | D．the car speeds by |
John didn’t choose of the ties and went away without looking at a third one.
| A．many | B．either | C．all | D．any |
The little boy was so careless with his spelling that she often_____ letters from words.
| A．left out | B．left behind | C．left off | D．let alone |
—You see, I’m poor in maths, you are not good at English, and... 
— That’s ____ we should help each other.
| A．when | B．where | C．how | D．what |
I can’t standwith Jane in the same office．She just refusestalking while she works．
| A．working；stopping | B．to work；stopping |
| C．working；to stop | D．to work；to stop |