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51 Mohammad Mahfooz Hussain6. Where:Active: Where does Alam keep the laboratory keys?Passive: Where are the laboratory keys kept (by Alam)?Syntax:Active Where + Auxiliary Verb + Subject + Main Verb + Object?Passive Where + Auxiliary Verb + Object (New Subject) + Main Verb (3rd Form) + by + Subject (Agent)?Now understand this step-wise:Active: Where does Alam keep the laboratory keys?Step %u2013 1: Replace %u201cWhere%u201d with a temporary location to create a standard declarative sentence. (Note: %u201cdoes keep%u201d combines into %u201ckeeps%u201d).%u2192 Alam keeps the laboratory keys in the drawer.Step %u2013 2: Change this normal sentence into the passive voice. (Here is the concord shift: %u201ckeys%u201d is plural, so we must use %u201care%u201d).%u2192 The laboratory keys are kept in the drawer by Alam.Step %u2013 3: Make it an interrogative sentence by bringing the new auxiliary verb to the beginning.%u2192 Are the laboratory keys kept in the drawer by Alam?Step %u2013 4: Replace the temporary location back with %u201cwhere%u201d.%u2192 Are the laboratory keys kept where by Alam?Step %u2013 5: Bring the Wh-word to the beginning of the sentence to complete the question structure.