3. A clock/ the wall
.a clock is on the wall
4. A calendar/ the bookcase
.a calender is beside ( bên cạnh) the bookcase
5. A fan/ the sofa
.a fan is next to the sofa
6. Two houseplants/ each other
.two houseplants is opposite each other
7. A desk/ chair
.a desk is beside the chair
8. A rubbish bin/ the desk
.a rubbush bin is under the desk
9. An alarm dock/ the lamp
.an alarm clock is next to the lamp
10. A lamp/ a pile of book and an alarm clock

 a lamp is between a pile of book and an alarm clock