opened

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

"The lost keys were hidden deep in the tangled undergrowth near the park bench. "

"The poor visibility made it hard to see the road clearly during the heavy fog. "

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

"The tour guide is conducting us through the museum. "

"To explain a chapter of the Bible."

"The magician was revealing his trick by showing how the disappearing box worked. "

"Every person who passes by is a potential customer."

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

"A big obstacle to understanding the manual was that it had been poorly translated from the Japanese."

"an accessible town or mountain"

"to interpret an Indian speech"