Helen Keller was able to learn to communicate through . having words spelled out on her hands
speaking
feeling people's throats and mouths as they spoke
both the first and third answer
both the first and second answer

both the first and second answer

Explanation:

because she was able to fell even things

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.

- the heat nearly killed them that first summer.