The prepositions are the words which show the relationship between the pronoun and the nouns.
Prepositions are used to express the relationship between two or more places, persons or time or express a relationship in time or space.
In the above sentence " When she arrived at the concert hall, the singer walked through a crowd of cheering fans.", preposition is 'at.'
The preposition 'at' indicates the place and precedes noun 'the concert hall.'
The correct sentence is If I hadn’t gone on vacation to Washington, I wouldn’t have met Sam. It is a third conditional sentence. It refers to a situation that happened in the past. It means that the person went on vacation and met Sam
Answer:
April 18, 1955
Explanation:
Because, "Death. Einstein died on April 18, 1955, at age 76 at the University Medical Center at Princeton. The previous day, while working on a speech to honor Israel's seventh anniversary, Einstein suffered an abdominal aortic aneurysm".
Nothing, it’s little information that’s given to come up with an answer.