---Do you know _______?

---Sorry, I don't know.

---May I have another cake?

---You'd better not. You shouldn't go swimming on a ______stomach.

---Hey, Turn it off! We don't ________music in the reading-room.

---Oh, I'm sorry, madam.

---________ is it from here to No．1 middle school?

---About half an hour's walk．Let's go and visit．

---Would you like _________ the Great Wall with us? 

---Yes, of course.

— The key may be in your bag.

—                         .

---How can I get to the palace Museum (故宫) from here?

---You can take a number 14 bus in front of our school.-How often does the bus leave for the museum?

---________.

---________ is this man?

---At home.

--- Has Tom had an accident?

--- ________.