We visited lots ___places. A. on B. of C. at
( )—What _______ you _______ last week? —I bought a bag.
( ) He went into the room and _______ the door.
( ) What did you see _______?
( ) _______ you _______ at six o’clock yesterday?
( ) Will you please say it again? I _______ quite _______ you.