Before radio and television invented, people spent much 1._________

more time reading, playing games and make conversations. 2._________

Although all of these pastimes have disappeared 3._________

the modern families are very likely to spend the evenings in 4._________

the front of the television than talking to each other. Some 5._________

people say that television viewing has had a seriously effect 6._________

with today’s children. They, on average, watch television 7._________

four hours a day, time when could be devoted to other more 8._________

useful occupations. But there are few modern families that 9._________

is without television, and this situation is unlikely to change. 10._________

      答案解析：

      1. invented前加were 此处用被动结构。Radio and television和invented之间是被动关系。

      2. make → making 此处为并列结构，动词形式应保持一致。

      3. have → have not / haven't 根据逻辑意义及前后句的转折可知此处应为否定表达。

      4. very → more 这是比较句型，后面有than作为暗示。

      5. the front → front in front of意为“在前面”，相当于before; in the front of意为“在整个物体内的前部”。

      6. seriously → serious 形容词作定语，修饰名词。

      7. with → on have an effect on是一个固定句型。意为“对……有影响”。

      8. when → which / that 修饰time的定语从句中缺少主语。故应用关系代词引导，不应用关系副词。

      9. √

      10. 第一个is → are 由于that指代的是复数families，所以谓语动词也要用复数形式。