Please pick up the ____. Don’t keep it on the floor.

My grandmother is very old, and she can't see clearly without __________.

—The land in the southwest of China is in great need of         .—Yes, it hasn’t rained for a long time there.

There are many apples in the box. You can take ________ if you like.

–Why are you still waiting in line? --I’ve missed my _______ .