This paper follows the lead of Chung (2013), examining the phonological suppression of the wh-expression in English and Korean. We argue that the wh-expression itself cannot undergo ellipsis/deletion/dropping, as it carries information focus. However, it can do so, when in anaphoricity with the preceding token of wh-expression, it changes into an E-type or sloppy-identity pronoun. This vehicle change from the wh-expression to a pronoun accompanies the loss of the wh-feature inherent in the wh-expression. In a certain structural context such as a quiz question, the interrogative [+wh] complementizer does not require the presence of a wh-expression, thus the expression being optionally dropped.
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