Д. Some of the things you see in your friend’s apartment loo…

Д. Some of the things you see in your friend’s apartment look different and you want to ask your friend what they are. Insert the words ‘что’ or ‘какой/какая/какое/какие’ in the blanks. (Only one of these choices is possible).   1. [chto] это? 2. [kakoe] это радио? 3. [kakaya] это книга?   4. [kakoj] это телевизор?