—Excuse me! May I use your computer now?—________I'm typing an important letter.
---How long have you lived in the new flat?---________ 2010.
---Excuse me, is there ________ book by Mo Yan?---Yes. It’s on _________ bookshelf over there.
—I am leaving for Switzerland next week.— !
— I called you yesterday evening, but nobody answered the phone.— Oh, I a walk with my parents at that time.
— The doctor told me not to eat too much, but I find it difficult.— The doctor is right. you eat, you will be.