My visit to your school is really an unforgettable experience,         I will always treasure.

I got this bicycle for ______．My friend gave it to me when she bought a new one．

---Which of the three optional courses did you like best, Joe? ---To tell you the truth, I didn’t like _______ of them.

---Money is important to us.         ---Maybe, but it doesn’t mean ___, I think.

In his lecture, the professor referred to the belief, in contrast to all other countries, _____ the elderly are wise, _____ is particularly dominant(占优势的) in the Chinese culture．