Read the passage below and decide which answer (A, B, C or D) best fits each gap.

The accumulation of book (1) ……. is one part of school education but this kind of learning can be and often is carried to (2) ……. in many countries so that no time for other interests is (3) ……. to young people. Not only must they attend school (4) ……. five-hour periods on six days of the week, studying possibly as many as thirteen different subjects, but in addition they may even go to afternoon institutes for (5) ……. instruction. They have almost no chance of taking (6) ……. any of their own hobbies or becoming familiar with the plants and (7) ……. life of the countryside except during their summer holidays. Early youth should be a time of exploration and adventure, of reading books for (8) ……. as well as study, of freedom to enjoy life before the responsibilities of working for a living and (9) ……. a family (10) ……. an end to study, to freedom and only too often to carefree enjoyment.