Identify the helping verb in the following sentence: Arthur is walking to the mall at five o’clock.
Farther vs. Further SubjunctiveConditional Sentence Type 0, 1, 2, 3 Ed and Ing EndingsTenses and PronounsAction, Helping & Linking VerbsGrammar (was, were, could, could not)Past ParticiplePast Continuous vs Past Simple
Other quiz: Grammar
This is valuable ……………. chair which dates back to the eighteenth century.
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