Select the option that is closest in meaning of the given sentence:
“You weren’t supposed to do that”
A) You should do that, but you don’t
B) You should have done it, but you didn’t
C) You shouldn’t have done it
D) You shouldn’t do that, but you do

Hint: Like synonyms, synonyms are words that have same or similar meaning. Like that, identify the similar sentence.When words or phrases have the same meaning, we say that they are synonymous with each other.

Complete step by step answer:
Option A) You should do that, but you don’t – is an incorrect answer because ‘you should do that, but you don’t’ means a person is supposed to do something but fails to do. However, this sentence is not similar in meaning to the sentence given in the question. Thus, this is an incorrect answer.

Option B) You should have done it, but you didn’t – is an incorrect answer because the meaning of ‘you should have done it, but you didn’t’ means a person is supposed to do something but fail to do. However, this sentence is not similar in meaning to the sentence given in the question. Thus, this is an incorrect answer.

Option C) You shouldn’t have done it – is the correct answer because the meaning of the sentence ‘you shouldn’t have done it’ means you are not supposed to do it or not necessary to do it. Thus, this sentence is similar in meaning to the sentence given in the question. Thus, this is the correct answer.

Option D) You shouldn’t do that, but you do – is an incorrect answer because the meaning of sentence ‘You shouldn’t do that, but you do’ means a person is not supposed to do something but still did. However, this sentence is not similar in meaning to the sentence given in the question. Thus, this is an incorrect answer.
“You weren’t supposed to do that” - You shouldn’t have done it
(Option C)

So, the correct answer is “Option C”.

Note:
Synonyms are the words that have similar meaning and same as similar sentences that have the same meaning. So, Option C is the most appropriate answer. However, the opposite meaning of the sentence is Option A and B will go because they are antonyms of the sentence “You weren’t supposed to do that”. Antonyms means opposite in meaning. Thus, Option B is the correct answer as compared to the other options.