-Does your uncle still smoke?
-He __________ given it up. It's two years ever since he __________.
| A．can't have; smoked |
| B．may have; smoked |
| C．should have; has smoked |
| D．should have; didn't smoke |
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view | C．means | D．idea |
American Indianabout five percent of the U.S. population.
| A． | fill up | B． | bring up | C． | make up | D． | set up |
It is one of the funniest things ______ on the Internet so far this year.
| A．finding | B．being found | C．to find | D．found |
There are plenty of jobs ______ in the western part of the country.
| A．present | B．available | C．precious | D．convenient |
You ______ be hungry already — you had lunch only two hours ago!
| A．wouldn’t | B．can’t | C．mustn’t | D．needn’t |