Don’t you think this shirt is too tight _____ the shoulders?

Jimmy managed to make a(n)        profit out of the deal，for he had got such a good opportunity．

________of the people on the Net ________China's economy is among the strongest in the world.

 The experienced teachers try their best _____ the younger ones _____experience.

－What do you think of the speech given by the president?－I like_________of what he said.