37. I need a new school bag, so I go to the supermarket to buy.
S + V, so + S + V.
38. I wish everything hadn't changed.
I wish + S + V-ed/ P1.
39. If I were you, I would buy this dictionary.
If + S + had + V-ed/ P2, S + would + V(infi).
or If + S + were sb, S + would + V(infi).
40. John whose novels are very interesting is a famous writer.
(John người có những cuốn tiểu thuyết thú vị là 1 nhà văn nổi tiếng)
