1.   Children learn to read by interpreting visual symbols.

2.   I read by the light of the fire.

3.   It was impossible to read by the dim light of the fire.

4.   She sat reading by the light of the fire.

5.   Students who cannot read by this point do not stand much chance of getting the help they need.

6.   The full moon last night was so bright I could almost read by it.

7.   The light in here is not bright enough to read by.

8.   Tom could read by the age of four.

9.   At night, he read by firelight.

10.   Hardly anyone can have learned both to read and to write and probably few learned even to read just by attending Sunday classes.