—You an umbrella. Do you think we are going to have rain today?
— . I use it as a walking stick.
---How is your teacher today?
---________
--- ________ my baseball?
--- It’s under the chair.
—It’s ______ of you to bring me some fruit.
—My pleasure. Please make yourself at home, sir.
—Did you return from Shanghai on time?
—No. The train________ I took was late because of the bad weather.
--How many classes do you have on Friday afternoon?
-- ______. We are free.
-Can you swim?
-Yes, I ________.