What’sthis?It’sa/anTheyarebees.Lesson5WhatAreThose?rulerthis(这〕What’sthis/that?It’sa/an.rulersthese这些Whatarethese?Theyare.thatcrayonWhatarethose?Theyarecrayons.Whatarethese?Theyarecameras.Whatarethese?Theyarephotos.Whatarethose?Theyaretomatoes.Whatarethose?Theyareapples.