1 The pictures which are being painted by her children will be in the gallery some tome
2 The river is polluted. Therefore, we can't swim in it
3 I get used to living on myself
4 If it weren't for your help, I couldn't do my homework properly
5 It was such an interesting trip that nobody will forget it
Part 2
46 in a trip which lasted for 2 days to
47 like wearing jeans
48 is the most effective activist
49 air pollutant
41.The pictures her children are painting will be in the gallery some time.
42. The river is so polluted. Therefore, we can't swim in it.
43. I get used to living on myself.
44. If you don't help me, I can't do my homework properly.
45. It was such an interesting country trip that nobody will forget it.
46. Liz participated in a 2-day trip to Ba's village.
47. The young like wearing jeans because they have never been out of fashion.
48. Nam is the most effective activist in the town charity program.
49. Exhaust fume from vehicles a factories the main pollutant for the air.
