--- Liu Tao has never read the book The Adventure of Tom Sawyer , _________ he?--- _________. He told me it's very interesting. He'd like to read it again.
- It seems that Mr Wu is standing there. - It be him because he called me from Canada just now.
He hasn’t come back home the end of last week.
----Don’t forget ________ the letter on your way home.-----Ok, I_________.
The box was too heavy for me to carry, ___I pulled it into my room.
— My dream is to build ________ university on the moon some day. — It sounds like _______ unusual dream. I wish you could realize it.