There ________ lots of trees on both sides of this street.But now they are all gone.
What can we students do _____ the environment?
—Would you like to have _____? —No, thank you. I’ve had enough.
Look at the photo of the Smiths.happy they are!
—Have you finished your homework? —Not _____. I_____TV last night.
This sentenceright. Please write it down.