Put the correct form of given words in brackets to complete the text

Put the correct form of given words in brackets to complete the text I can ( see )..... two groups of people. I guess they ( be) ......... in a cafe or maybe a hotel. They ( sit ) ........... on a sofa and comfortable chairs. I (think ) .......... that they (be).......... about 17 or 18 years old. The photo ( show ) ............. them ( chat )............... chatting and ( smile )........... The girls in the foreground ( all drink ).................... In my view they ( be)........ friends because they ( look )....... very relaxed and they ( laugh)............ I ( be not )........ sure why they ( be )......... so happy. Perhaps they ( celebrate )............ a special occasion, like a birthday. Or maybe the girl in the blue top ( say).............. something funny.