I saw a sentence on an app, AnkiPro, and was not sure about something. The sentence went like "Should we give a big hand to each beauty contestant is as she is introduced, or should we wait until all the introductions are finished?". I don't think "is" is necessary before "as". Is it more idiomatic with "is" attached to "as" or is "is as" a common phrase used? I know there is an expression "as is".