---Would you like to go for a picnic?
---Yes, __________
---What shall we do this Sunday?
---Why ______ to the Science Museum?
-________ do you go to school every day?
-Usually on foot, but by bus when it rains.
-________ did you stay in Shenzhen?
-For two weeks.
--When did this accident happen?
--It happened ________six o'clock ________ the afternoon of last Monday.
--Do you know the differences ________ the three words?
--Sorry. I don't know.
--I have to go to the museum ________ foot tomorrow.
--What's wrong ________ your bike?
--Have you ever heard ________ Mr Green, your new headmaster?
--Yes, just a little. He's rather strict.
-Well, I found this.I think it must be yours.
-My watch!Thank you.Where ________ it?
-Who is the woman ________ was talking to our English teacher?
-Oh!It's Mrs Baker, our new maths teacher.