unscrupulous

"The student gave a contemptuous look at the teacher when he was told to redo his assignment. "

"The old, tattered textbook was worthless to the student preparing for the exam. "

"The teacher convinced the students that the Earth revolves around the sun, using diagrams and explanations. "

"The online personal for finding a book club partner was very popular among students. "

"The company needed more money, so they asked investors to buy shares. "

"A problem ignored is a problem doubled."

"Giving your children a good education is a wise long-term investment."

"The judge was known as an honorable person who always made fair decisions. "

"The salesman at the electronics store showed my dad several different laptops. "

"The jeweler carefully weighed the diamond, noting that it was missing a few scruples in weight. "

"The school has high academic standards, so students must study hard to succeed. "

"My father is a businessman who owns a small electronics store. "