Question

the scientists did an experiment to speech using brain waves for listening. the scientists asked volunteers to listen to a series of words. the patterns of the volunteers were recorded while they listened.

Explanation:

• For the first blank, since the context is about using brain waves for speech (related to listening), “produce” makes sense as the scientists did an experiment to produce speech using brain waves.
• The second part is already filled as “listen to” and “words” which is correct based on the structure of the sentence.
• For the third blank, since the experiment is about brain waves (as given in the answer bank), “brain waves” is the appropriate term as the patterns of the volunteers' brain waves were recorded.

Answer:

1. produce
2. listen to; words
3. brain waves