Answer:
A) When we got to our campground, it was only mid-morning, but the campsites were already filling up fast.
Explanation:
"When we got to our campground, it was only mid-morning, but the campsites were already filling up fast." This sentence perfectly fits as sentence 11. The other answers describe how the campsite looks, but it doesn't fit in front of sentence 12. Here are the to scentences put together:
"When we got to our campground, it was only mid-morning, but the campsites were already filling up fast. Nonetheless, by some miracle, there were one open right across from the showers. "
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