--- Where is No. 1 Middle School? --- It’s next to the city library. A. You’re welcome! B. Excuse me! C. Thank you!
–Your bedroom is dirty. Please tidy _____ up. -Ok, mum. A. it B. its C. them
--- Hi, Sunny, your new flat is so nice! --- Thanks, _____.
--Good news! They will __________ on May Day holiday. --- Sounds exciting!
---Do you know _______? ---Sorry, I have no idea.
---There _____ anybody in the room. --- Why do you say so? --- Because the door is locked.