—Excuse me, could you tell me where the post office is? —__________, but I’m a stranger here．

— My son, who is now studying at a university, uses more than 3,000 yuan a month.— Well, tell him to be economical(节约). After all, _______.

—I’m going to Lijiang for vacation.—    .

I am really upset about tomorrow’s exam. I am always so slow. _______! You can pass it. You have been working hard on it, haven’t you?

-- It will be my turn. I feel a little nervous.--________ You can make it!