1 B some=>any(Vì câu này là phủ định nên dùng any)
2 B am=>were(Câu ĐK loại 2: If+S+were+O,S+would/could+V+O)
3 C who she=>who(who thay thế cho she)
II
1 natural (adj+N of N)
2 importance (N of N)
III
1 Many people are interested in reading science books.
(be interested in + Ving)
2 My mother is used to getting up early in the morning
(be used to +Ving)