In this task, based on the given input, we ask you to write a question about when an event happened. Your question should be answerable with common knowledge on when events usually take place. For example, "going to school" usually happens during the day (not at 2 A.M). 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". The written questions are not required to have a single correct answer.

[Q]: Sentence: In school, Atta came across as very intelligent and reasonably pleasant, with an excellent command of the German language.
[A]: When did Atta learn German?


[Q]: Sentence: In Colombia, the drug-financed guerrillas trying to seize the country and destroy democracy include M-19, which Castro has clearly backed.
[A]: When did the guerillas first appear in Columbia?


[Q]: Sentence: President Clinton told us that when he pulled Musharraf aside for a brief, one-on-one meeting, he pleaded with the general for help regarding  Bin Laden.".
[A]:
What time did the meeting occur?


