slouched

"My mother taught me good posture for sitting at the desk during school. "

"The garden was full of flowers, attracting bees and butterflies with their bright colors and sweet smell. "

"My daughter's success in school is anything I'm proud of. "

"a vegetable garden  a flower garden"

"The intricate making of the model airplane showcased the student's skill. "

"The clumsy tripped over the rug and spilled her coffee. "

"They played long and hard."

"Gravity pulls everything downwards."

"Depress the upper lever to start the machine."

"He sat with an unenthusiastic slouch."

"My sister learned to write in a very careful manner. "

"My mom put the milk in the fridge to keep it fresh. "