Question: I jumped instinctively in fright. What is the cause?

Answer: I sensed someone approaching me from behind.


Question: The boy murmured his reply to his mother. What is the effect?

Answer: His mother told him to speak up.


Question: The woman presented her brother with a gift. What is the effect?

Answer: Her brother unwrapped the gift.


Question: The waistband on my pants was loose. What is the effect?

Answer:
I put on a belt.