Đáp án:

Every year people in many countries learn English. Some of them are young children. Others are teenagers. Many are adults. Some learn at school. Others study by themselves. A few learn English just by hearing the language in films, on telivision, in the office or among their friends. Most people must work hard to learn English.
 Why do all these people learn English? It’s not difficult to anwer this question. Many boys and girls learn English at school because it is one of their subjects. Many adults learn English because it is useful for their work. Teenagers often  learn English for their higher studies because some of their books are in English at the college or university. Other people learn English because they want to read newspapers or magezines in English.
40. According to the writer. English is learnt by...............
    A. young children  B. adults  C. teenagers   D. all are correct
41. In the line 2 of the second part, the word “it” refers to..........
    A.country         B. young childen  C.English (vì ở đây đang nói về tiếng Anh).                   D. question
42. Where do many boys and girls learn English?
     A. at home   B. at school  C. in evening classe  D. in the office
43. Which has the same meaning as the words “ not difficult”?
     A. boring   B. interesting  C. easy (vì "not difficult" dịch là không khó, mà "easy" cũng là dễ (dễ=ko khó)         D. beatiful
44.  What is the main idea of the passage?
    A. Learning English     B. Learning English at school   
   C. Why teenagers learn English   D. People learn English by themselves
45. What is  TRUE according to the passage?
   A. Many adults learn English because it is a compulsory subject at work.
   B. To learn English, most people have to work hard.
   C. All people learn English at school.
   D. Most people learn English just by hearing the language in films  of the following questions.

Giải thích:

Every year people in many countries learn English. (giải thích câu 40):Some of them are young children. Others are teenagers. Many are adults. Some learn at school. Others study by themselves. A few learn English just by hearing the language in films, on telivision, in the office or among their friends. Most people must work hard to learn English. Why do all these people learn English? It’s not difficult to anwer this question. (giải thích câu 42):Many boys and girls learn English at school because it is one of their subjects. Many adults learn English because it is useful for their work. Teenagers often learn English for their higher studies because some of their books are in English at the college or university. (giải thích câu 45): Other people learn English because they want to read newspapers or magezines in English.

1 . B ( Every year students in many countries learn English. Some of these students are young children. Others are teenagers. Many are adults. )

2 . D ( Most people must work hard on their lessons to learn another language. )

3 . B(Many boys and girls learn English at school because it is one of their subjects.)

4 . B ( In England, America or Australia, many boys and girls study their own language, which is English, mathematics and another language, perhaps French, German or Spanish.)

5 . B  ( Dẫn chứng : Many adults learn English because it is useful for their work.)