instruction:
Provided the input sentence, you're expected to write a question that involves event "frequency", which refers to how often an event is likely to be repeated. For example, "taking showers" typically occurs ~5 times a week, "going to Saturday market" usually happens every few weeks/months, etc. Don't create questions which have explicit mentions of answers in the text. Instead, it has to be implied from what is given. In other words, we want you to use "instinct" or "common sense". Also, the written questions are not required to have a single correct answer.
question:
Sentence: Those in the shelter wondered if the aircraft had been shot down pursuant to this authorization.
answer:
How often had the aircraft been shot at?


question:
Sentence: In the mean time fate had avenged Law on one of his lesser enemies.
answer:
How often did fate intervene?


question:
Sentence: In the fall of 1991, he asked a German family he had met in Cairo to help him continue his education in Germany.
answer:

How often does he talk to the German family?


