----May I speak to Mrs. Green?----Sorry. Mrs. Green _____ downtown for shopping. Would you like to leave a message?
---Excuse me,I want to buy some milk.Where can I find a supermarket? ---Oh,I know ________ not far from my home.
--- ___________? --- That would be great! Please drop me off at the library.
The river smells terrible. People_______ dirty things into it .
---Miss Li, where did you visit last week? --- I visited a big company __________ ships are made.
---Mum, have you seen my mobile phone? ---_______ you bought last week? I’m afraid I haven’t seen _______.