III. Fill in each blank with the correct linking word.
51. Paul likes to help the sick he has donated blood several times.
52. Take a coat it’s cold outside.
53. Homeless children are they don’t have enough food, warm clothes and schooling.
54. Nick went to bed early he felt very tired.
55. We went to the nursing home we talked and sang for the elderly.
1 so
2 because
3 thiếu
4 because
5 and