You are in the summer camp and got a letter from your foreign friend

Dear rob, i was glad to receive your letter. sorry i haven't answered so long. i really was busy, because i am in the summer camp now. how are you? you asked how was it going. well, i am rather fine. i made a lot of new friends here. we are always together. we go to the river, to the forest and have much fun. in the evening we usually sing songs, play different games. by the way, where are you now? how are you spending this summer? what is your mood today? anyway, have to go now. write me back as soon as you can. love, (your name)

в этом нужно убрать лишнее слово из строки.

1. giraffe 

2.   penguin 

3.   hipo

4.   crocodile 

February 14, 1876, alexander  graham  bell (1847-1922), professor of physiology  ofspeech  at boston university, has patented  his invention  in the u.s.  - the phone.if we talk about  the specific purpose  of the inventor, it  appeared,  as they say,  by accident.  but the idea of  creating  the usual  phone  for all of us  were not born  in a vacuum.