-- Is that _________ sister, Dave? -- No, it isn’t. She is my friend.
“Father bought me a new bike.” The structure of this sentence is_______.
—It’s said that we will have an English teacher from Canada next term. — Wow! ______!
The book is well worth ________. I plan _________ one.
—We’ll study in different schools next term. Enjoy your time in the new school! —______.
Today, the forests have almost gone. People must ______down too many trees.