Difficulty: Medium
Average Score: 93%
Entry Exam
Which word best fills in the blank? If they ______ that the weather was going to be so bad, they wouldn't have gone to the beach.
Correct answer
C
Rationale
In this sentence, we are talking about a past condition that did not happen. The correct structure to express this type of situation is the third conditional, which uses the past perfect in the if-clause (had known) and would have + past participle in the main clause (wouldn't have gone). Therefore, the correct answer is 'C: Had known.' This choice correctly conveys the idea that if they had known about the bad weather in advance, they would not have gone to the beach.