where's the picture是什么意思?lt's on the

where's the picture是什么意思?lt's on the lt’s on the “lt's on the third floor”是什么意思 where is the ball? lt' s om the chair 是什么意思 Emma.where is ----watch?lt's on the sofa lt's a picture of the (3)Where is the cat?lt's -Where's the park?-lt's _______ the post office. where is the horse?lt's( )the tree.A.in b.under c.on d.at where is the Art room?lt's( ) the second floor. lt's under the tree 是什么意思? where's the librarg是什么意思