Danny did all kinds of things to make the baby ______.
The air in Lanzhou is getting much _____ now than a few years ago .
The teacher is speaking. Please stop _____ and listen to him.
--May I borrow this dictionary ? ---Sorry. This is not _____. It’s Lily’s .
---_____do you go to visit your grandma ?---Twice a month
There are few __ in the fridge. Let's go and buy some potatoes, carrots and peppers.