solid

"She participated in the school play. "

"one of the fundamentals of linear algebra"

"The substantial of my grandmother's advice helped me make a good decision. "

"The company established a new policy to improve employee safety. "

"For lunch, I made sandwiches with ham and cheese. "

"I recognised his face immediately."

"The teacher explained the lesson thoroughly throughout the entire class period. "

"The successful constitution of our community garden relied on everyone contributing their time and skills. "

"The temperature in the room dropped nearly 20 degrees; it went from hot to cold."

"The math problem required us to understand the dimensional relationships of the cube. "

"He helped his daughter out financially, paying her rent and utilities, until she recovered from the accident."

"The child used geometrical shapes, like squares and circles, to build a tower out of blocks. "