13．A new simplified desktop computer has been developed for people aged over 60 to make them _________with PC and the Internet.
| A．familiar | B．aware | C．popular | D．Conscious |
you are grown up, you should not rely on your parents.
| A．However | B．Now that | C．How often | D．How long |
Traditions and fashions, like society itself, change and with time.
| A．adopt | B．adapt | C．adapting | D．fited |
His shoes are muddy. He be working in an office all day.
| A．mustn ’t | B．can’t | C．needn’t | D．maybe |
It is not to discuss the questions again and again.
| A．worth | B．worthy | C．worthwhile | D．worthy of |
Always read the on the bottle carefully and take the right amount of medicine.
| A．explanations | B．instructions | C．descriptions | D．introductions |