Câu hỏi:

 Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 27 to 31. Books are written to (27)............... knowledge and good books encourage mental power. Through good books, we learn many things .This knowledge improves our love of other people and helps us to live in (28).......... with them. We also realize that the world is made not only for man alone but (29)............ for every creature. Though it may be possible for us to travel throughout the world and see the things happening today, it is not possible for us to see the things that happened in the past. Good books, however, (30)............. us to see the most remote regions of the world today as well as the world (31)............ our ancestors lived.   Books are written to (27)............... knowledge and good books encourage mental power.

Books are written to (27)............... knowledge and good books encourage mental power.