Select the most appropriate option to fill in blank number 2.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. learn.
Context: The sentence compares increasing understanding over time, so it uses the construction “the more we learn.”
Meaning of the words:
Learns: Third-person singular; incorrect for “we.”
Learning: Present participle; doesn’t fit grammatically here.
Learned: Past tense; the sentence is present tense.
Learn: Base form; matches with “we” in present simple tense.
Correct word: Learn
Reason: The subject “we” takes the base verb “learn” in the simple present tense, and this structure is standard in “the more we X, the more Y” comparisons.
Final Sentence: The more we learn about dolphins, the more we realise that their society is more complex…
Hence the chosen option is correct.