bet

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

"Responsibility is a heavy burden."

"His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing."

"the acceptance of a gift, office, doctrine, etc."

"The student answered the math problem correctly. "

"My certainty about my ability to finish the project before the deadline was high. "

"My sister's joyful expression showed how happy she was about the good news. "

"His exclamation of "Wow!" showed his surprise at the unexpected gift. "

"The teacher threw a challenge to the students: "Who can solve this difficult math problem?" "

"The guard blew his whistle to indicate imminent departure."

"The weather forecast predicts rain tomorrow. "

"to enter an agreement;  the UK and US negotiators nearing agreement;  he nodded his agreement."