．—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 |
________ have the radio repaired，he’d like to buy a new one.
| A．More than | B．Rather than | C．Instead of | D．Other than |
Social networking is an important factor________ business success.
| A．devoting to | B．appealing to | C．attaching to | D．leading to |
They are shocked to find that in this town the traffic rules are not strictly ________.
| A．noticed | B．recommended | C．observed | D．concerned |
How can you expect him to make any progress ____ you never give him a chance to have a try?
| A．when | B．unless | C．even though | D．until |
---Is there any flight to New York?
--- I think there ______ be, for it is snowing so heavily.
| A．shouldn’t | B．mustn’t | C．can’t | D．needn’t |