---Are the key rings the ______? ---No, they are ______
| A．twin’s; her | B．twins’; hers |
| C．yours; mine | D．yours;their |
Teenagers are not allowed to stay out late _school nights.
| A．on | B．in | C．at | D．by |
lf you want to work for a magazine, we have a job for youa reporter.
| A．with | B．of | C．as | D．for |
With help, we finished our work on time.
| A．they | B．them | C．their | D．theirs |
There isinsect on the ground. The child is very interested in it.
| A．a | B．/ | C．the | D．an |
People have learned a lot from
studies．
| A．science | B．scientific |
| C．scientist | D．sightseeing |