circumspect

"I’m sure the bad news will upset him, but he needs to know."

"My sister brought several books to the library, and that one is about dinosaurs. "

"The being in the classroom was quiet today. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The somewhat of extra help she received from her tutor significantly improved her test scores. "

""Because of unforeseen circumstances, the school trip was cancelled." "

"The student was aware of the approaching deadline, so she diligently worked to finish her project. "

"We joined the audience just as the lights went down."

"Walking home from school late at night poses a danger to your safety. "

"The teacher's comments about my presentation were pertinent to the topic of marketing strategies. "

"Consider that we’ve had three major events and the year has hardly begun."

"I have no comment on that."