Why are some questions incomplete?

[Medal]

I realised that some of the questions I have come across are incompletely expressed. This has led me to fail to choose the correct answers for such questions. However, I cannot remember a specific question at the moment but I promise to cite some of them in a special post.

[Jamie (K)]

Please cite them. It's hard to answer your question if we don't have examples.

[Boke]

I guess you could be talking about "Inference Questions" but like Jamie said we need some examples.
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福山市　英会話 goodwin