Can I help you —Yes. Two ______, please.

－Mom,where’s my backpack－Youshouldn’t put your things casually, you should take good care of _____ ownthings.

I’m sorry I often feel weak or fall ill at school.—Keep ________ more after-school activities, and you will feel better soon.

How often do you clean your room— .

I stared into the blackness and wondered if he was as aware of my presence as I.