He is ________ experienced teacher in our school.
| A．a | B．an | C．the | D．/ |
26. ________ 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 |