Question

Fill in the blank with the most appropriate word.
If I had known that this book was so boring,__________
(A) I wouldn’t buy it.
(B) I wouldn’t have buy it.
(C) I would have bought it.
(D) I would have buy it.

Answer 1

Hint: Conditional sentences are sentences expressing one thing based on something else, e.g." The picnic will be cancelled if it rains. They are so named because the effect of the sentence 's main clause is conditional upon the dependent clause.

Complete answer:
In the form of the third conditional, the given sentence is. The third conditional mentions the past. It is used to identify a circumstance that has not arisen, and to imagine the outcome of this circumstance. Below, its structure is given.
if + past perfect,.....would + have + past participle

We may infer from the above structure that the answer must have 'a type of will' followed by 'have' and then 'a past participle.' In addition, the sentence says that the book was boring and, thus, it can be said that the subject would not have bought it given the chance. This has to be suggested by the response.

Option A is unreliable. There is the right form of 'I wouldn't buy it' but, it doesn't have the word 'have' and it doesn't have 'a previous participle' either.

Option B is reliable. It has the correct form of 'would' that means that it would not have been purchased by the subject (given the chance). Even,' wouldn't' is preceded by 'have' and then 'a participle from the past.' Thus, it meets all the conditions needed and is correct.

Choice C is unreliable. It does not have the proper 'Will' shape. It indicates that the subject might have purchased it again, provided a second opportunity. It does not, however, excuse the book being boring.

Choice D is unreliable. There is no proper framework for 'I will buy it' as it does not include 'have' or 'a past participle'. Even, just like option C, it does not express the right interpretation. It is, therefore, wrong.

Hence the correct answer is option ‘B’.

Note: In order to answer such questions, it is necessary to have the correct knowledge of the grammar. Conditional sentences are very complicated; this question can be answered only after studying all the rules related to them.