optimised

""The group of friends issued playful challenges to each other to see who could build the tallest sandcastle." "

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The lack of sleep resulted in a poor performance on the math test. "

"The efficient of the new study method was improved learning outcomes. "

"The supermarket sells a wide variety of food products. "

"Originally, this paper was white, but over the years it has yellowed with age."

"Every person who passes by is a potential customer."

"It was an experience he would not soon forget."

"The word "drink" is a transitive verb in "they drink wine", but an intransitive one in "they drink often.""

"She optimistically predicted that she would finish her homework before dinner, even though she had a lot to do. "

"My brother is a true optimist; he always expects his exams to go well. "

"After many frustrating attempts, he eventually finished his school project. "