greased

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

"The child's improvement in math was extraordinarily rapid. "

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

"The bike chain was squeaking loudly, so I applied lubricant to it to make it run smoothly. "

"To prepare the bicycle for its first ride of the season, I lubricated the chain. "

"The new software will facilitate online communication among students in the class. "

"My old car is unreliable; it often breaks down on the way to work. "

"The waiter carried the trays of food smoothly, avoiding any spills. "

"The teacher convinced the students that the answer was B by explaining the formula clearly. "

"The company's rapid expansion into new markets proved to be an overreach, leading to financial losses. "

"The cyclist struggled to keep his balance due to the strong crosswinds. "

"The children stared in amazement as the magician pulled a rabbit from his hat. "