1. ---Where is your schoolbag? --- It's under the desk.
2. --- Where are our books? --- They're on the desk.
3. Come on, Jack. We are late.
4. My dictionary and my radio are on the desk.
5. My pencil box is in my schoolbag and my schoolbag is under the desk.
--- Do you have a pen?     --- Yes, I do.     --- Where is it?     --- It's in my bag.
--- Do you have a blue pencil?     --- Yes, I do.     --- Where is it?     --- It's on the desk.
--- Do you have a glass?     --- Yes, I do.     --- Where is it?     --- It's on the table.