Sunday afternoon, we went shopping on foot.
---What did you discuss just now?---We discussed .
---It looks heavy. Can I give you a hand?---___________.
--Haven't you seen Mr. Wilson at the lecture?--Yes, but he had left _________ I could ask him any questions.
---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.