coffins

"The teacher used a rectangular whiteboard to draw a diagram. "

"He is an unusual individual."

"The engineers designed a new water filtration system for the school. "

"My brother uses the underground to get to work every day. "

"The juice box is a small container for the children's drinks at school. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The store displayed the new fall clothing in its front window. "

"The architect was designing a new school building. "

"The carpenter built a new wooden bookshelf for my bedroom. "

"The weather forecast predicted rain for tomorrow, so I will bring an umbrella. "

"The complicated instructions on the new software difficult me from completing the project on time. "

"The infection spread quickly through the classroom after one student got sick. "