Номер 4 и 5:) Пожалуйста.

5. Our apartment is great . There are two rooms and a kitchen. -What on the table? - On the table pen and pencil. Our family has three children . We have two sons and a daughter. Last year our office had five engineers , two economists and a Secretary .- In your office there are young engineers? Yes. In our office, three young engineers . On my Desk not ten letters .There are only eight.-Any pencils on the table?- There's a little red. 
4. There are students in  this  room.  вопрос -In what room the student? 
There were  English books on the shelf.  вопрос -what shelf?