A wh-question usually refers to the main clause which starts with the questio...

A wh-question usually refers to the main clause which starts with the question word, however, questions can also refer to subordinate That-clauses. THAT must be dropped in:


A wh-question usually refers to the main clause which starts with the question word, however, questions can also refer to subordinate That-clauses. THAT must be dropped in:

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