You want to write a story about a young boy who is very bored spending the summer at his grandparents' farm and learns to enjoy being there through different experiences. which sentence would be the most effective opening for that story?

The sentence that would be the most effective to open a story of a young boy who becomes bored or spending the summer at his grandparents' farm is:

Only after living surprising experiences, the boy stopped believing that spending in the summer ar his grandparents' farm was boring.

Explanation:

There are two main reasons to back my answer. The first one is that we need to make clear that the boy stopped believing spending the summer at his grandparents' farm was boring as a fact in the past. as if the writer is talking from the future after everything happened. Because, if we talk in the present or future, there would be a chance to being wrong. The second one is that we need to state that the posture changed after time and experience. To make the reader think about what would have made him think like that, to hook it to the lecture.