hamburger

"He discovered penicillin largely accidentally."

"My sister is very helpful, especially when it comes to organizing things. "

"The box containing my old toys was stored in the attic. "

"My sometimes neighbor, a retired teacher, still visits the school occasionally. "

"My mom always has a variety of condiments on the table for breakfast, like ketchup, mustard, and hot sauce. "

"The pizza was delicious, so I ate two slices. "

"The project consists of three main parts. "

"Unfortunately, the heavy rain prevented the soccer game from taking place. "

"For lunch, the school cafeteria served hamburgers with lettuce and tomato. "

"In biology class, we learned that technically, even fruits are vegetables because vegetables are any plant. "

"The feeling is difficult to describe, but not unpleasant."

"The substitute teacher was very good at explaining the difficult math concepts. "