0ld people are often .We should listen to them and care for them.

Cocaine’s being often used as painkillers can give rise to the________belief that it is not an addictive drug.[ ]

Have you finished your experiment report, Jane—Oh, my God. I’ve _______ forgotten all about that.

I’m sure that if you make good use of your ____ time, your English will be improved in a short time.

lice still haven’t found the lost child, but they’redoing all they.