opportune

"The early arrival of the bride created a stir."

"The teacher pointed out a particular detail in the math problem that several students missed. "

"During their lunch break, the coworkers had a conversation about the new project. "

"The teacher's monotone voice bored the students during the long history lecture. "

"Taking the early morning train is advantageous because it avoids the rush hour traffic. "

"I guess he must have weighed some 90 kilos."

"The train schedule was convenient for getting to work on time. "

"The new shoes are suitable for playing sports. "

"We went out for a picnic in the forest."

"The faulty electrical wiring caused a short circuit, plunging the whole house into darkness. "

"My purpose for studying hard is to get good grades in school. "

"A promotion at work would be a great reward for his hard work. "