mishandle

"He gave an incorrect answer to a simple question."

"If you mishandle a fragile package, the contents may break."

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

"The chef carefully manipulated the ingredients, stirring the sauce gently. "

"I lost a few marks in the test for spelling words incorrectly."

"He still has nightmares resulting from the treatment he received from his captors."

"The United States is in an awkward situation with debt default looming."

"The bug spray was ineffective; the mosquitoes were still biting us. "

"The politician's manipulation of public opinion was evident in his campaign speeches. "

"My sister's reputation for being organized helped her excel in school. "

"How long has it been since your last physical?"

"The professor of ancient history specialized in diplomatic studies. "