unobserved

"My mom spends most of the morning in the kitchen, preparing breakfast for the family. "

"I am still hoping that all will turn out well."

"The scientist caught a small mouse scurrying in the lab. "

"The dry-stone wall used a large, flat through to support the top stones. "

"The being in the classroom was quiet today. "

"The student sat silently in the library, concentrating on his book. "

"a vegetable garden  a flower garden"

"From this vantage point we can observe the behavior of the animals in their natural habitat."

"The catch of the perpetrator was the product of a year of police work."

"Drivers must switch off engines whilst on stand."

"The student stealthily copied the answers from the neighbor's paper during the test. "

"The baby crept across the floor towards the toy. "