Ответ:

1-d

2-c

3-b

4-a

Объяснение:

1) can learn more-

d) use the Net to get information ​PROS

2) can be unhealthy-

c) damage children's eyes, cause headaches CONS

3) waste their time-

b) play games or surf on the Net instead of studying CONS

4) develop skills which they will use later in life -

a) most jobs involve using a computer PROS