Result:
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Correct answer: techniques
Explanation: The word 'techniques' fits grammatically as a plural noun that refers to methods or ways of doing something, which aligns with the context of developing methods of brain imaging. It also matches the surrounding text, which discusses advancements in observing brain activity.
Meaning: 'Techniques' refers to specific methods or procedures used to accomplish a task, particularly in scientific or technical contexts.
Wrong options:
- processes: While 'processes' could refer to a series of actions, it does not specifically imply methods of implementation like 'techniques' does.
- modes: The term 'modes' suggests different forms or ways but lacks the specificity of methods that 'techniques' provides in this context.
- research: 'Research' refers to the systematic investigation into a subject, which does not fit as a method of brain imaging development.
Correct answer: hidden
Explanation: The word 'hidden' is the correct choice as it is the past participle form of 'hide,' which fits grammatically and contextually to describe experiences that are not visible to public observation. It aligns with the passive construction of the sentence.
Meaning: 'Hidden' means concealed or not visible, indicating that experiences cannot be directly observed by others.
Wrong options:
- hiding: 'Hiding' is a present participle that does not fit grammatically in this context, as it does not describe the state of experiences.
- hide: 'Hide' is the base form of the verb and does not fit grammatically as it would require a different structure in this sentence.
- hideous: 'Hideous' means extremely ugly or unpleasant, which is irrelevant to the context of experiences being observable.
Correct answer: although
Explanation: The word 'although' serves as a conjunction that introduces a contrast, fitting well in the context of the sentence to indicate that despite knowing what we are thinking, we may struggle to express it verbally. This aligns with the logical flow of the argument presented.
Meaning: 'Although' means 'in spite of the fact that,' introducing a contrast between knowing our thoughts and the difficulty in verbalizing them.
Wrong options:
- besides: 'Besides' suggests an addition rather than a contrast, which does not fit the intended meaning of the sentence.
- so: 'So' implies a consequence, which does not align with the contrasting idea presented in the sentence.
- therefore: 'Therefore' indicates a conclusion, which is not appropriate in this context where a contrast is being made.
Correct answer: in
Explanation: The preposition 'in' is the correct choice as it indicates the context or situation being referred to, fitting grammatically and contextually with 'thinking in similar circumstances.' It aligns with common English usage regarding thoughts and situations.
Meaning: 'In' indicates a state or condition, suggesting that we are considering our thoughts within the context of similar situations.
Wrong options:
- of: 'Of' indicates possession or relation, which does not fit the context of thinking within a situation.
- on: 'On' typically refers to a surface or topic, which is not appropriate in this context of situational thinking.
- about: 'About' suggests a subject matter but does not convey the same contextual meaning as 'in' regarding circumstances.
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