You can convert fragments of articles to questions and answers. You will do it using the tool called Cloze. A cloze is a sentence with a word missing and replaced with three dots. Such a sentence can be understood as a question. Your job is to recall the missing part of the sentence. For example:
Sentence: The theory of relativity was proposed by Einstein

Cloze:
Question: The theory of relativity was proposed by [...]
Answer: Einstein