We should do some things to protect the environment.For example,we shouldn’t________too many trees.
The apple pie tastes good. Can I have _______ one?
Three tall boys sit in front of me so I ________ see the blackboard.
I saw some old men ________ Taiji when I passed the park.
________ you want to go out, let me know, please.
You ________ lend the bike to others because I’ll use it.