[Q]: The boy had trouble buttoning his shirt.

effect:
[A]: He asked his mother for help.
[Q]: I botched the job interview.

cause:
[A]: The interviewer asked difficult questions.
[Q]: The man felt thankful to be alive.

cause:
[A]: He was cured of cancer.
[Q]: The man made an error in his calculations.

cause:
[A]:
His work was hasty.