Complete each of the following sentences with given word in bracket so that the new one has the same meaning with the old one. Do not change the given words in any way. 17. Despite living in the mountain, he found no difficulties. (Although)  ___________________________________________________________________. 18. You don’t have to tip in Vietnam. (necessary)  ___________________________________________________________________. Finish the second sentence so that it means the same as the first one. 19. There’s a tradition that the first person to step into our house should be a man.  According to tradition, _________________________________________________. 20. My friend broke with the tradition by not living with his parents.  My friend didn’t follow _________________________________________________.