Rewrite the sentences in the passive--use the "by" agent only when necessary. ​

As far as I can see phones are not toys and I will explain you why.
First of all phones were created for communication and not to be a toy for teenagers. Even though now a’days they have way more functions then 50 years ago their main function is still communication. Of course some people use them to play mobile games and scroll though Instagram, but this doesn’t make them a toy because the majority of people use them for communication with society. And even while playing video games teenagers communicate with each-other.
Overall phones are used by people for communication and not as a toy. Its just that people now a days can communicate not just by calling each other, but through video games and Social media.

Aɪ lʌv tuː riːd bʊks, 
ɪts maɪ kʌp ɒv tiː. 
bʊks ɑː fʊl ɒv aɪˈdɪəz, 
dəʊnt juː əˈgriː? 

bʊks kæn tiːʧ ænd ɪkˈsaɪt, 
bʊks kæn ˈkʌmfət ænd θrɪl, 
bʊks kæn ʃəʊ juː ðə wɜːld, 
ænd wɪl meɪk juː fiːl. 

ˈfʌni bʊks meɪk miː lɑːf, 
rəʊˈmænsɪz meɪk miː kraɪ, 
ədˈvɛnʧə bʊks meɪk miː ˈhæpi, 
aɪ dəʊnt nəʊ waɪ. 

ˈθrɪləz bɔː miː tuː dɛθ, 
ˈfæntəsi ɪz gʊd fʌn. 
ænd aɪ dəʊnt riːd ˈsaɪəns ˈfɪkʃən, 
aɪv ˈnɛvə dʌn. 

ɔːl ðəʊz ˈrəʊbɒts ænd faɪts, 
ænd ˈeɪliən ʃɪps, 
meɪk miː kraɪ æt naɪt, 
meɪk miː wɔːk ɪn maɪ sliːp. 

bʊks wɪl nɒt lɛt juː daʊn, 
bʊks wɪl ˈnɛvə mɪsˈliːd, 
wɛn juː meɪk ə njuː frɛnd, 
ɑːsk hɪm "wɒt duː juː riːd?"