根据短文填空，回答下列问题。 This is my bedroom. There are many (许多) things in it. You can see a table, a bed, a drawer, a dresser, a computer, a bookcase, a sofa, a chair, a backpack, a plant and some books in it. The boocase is behind the sofa. The books are on the table and the bookcase. My backpack is behind the door.oh, where are the keys? They are on the dresser. 1. Where is  the boocase ? __________________. 2. What is on the table and the bookcase? __________________. 3. Where are keys? __________________. 4. Where is the backpack? __________________. 5.Can you see a computer in the bedroom? __________________.