lnstagram is an online photo and video sharing app and (1) ____ by Facebook. It cost the social networking site $1 billion in 2012, but now the app (2) ____ to be worth over $20 billion. The app is extremely popular and (3) ____ by over150 million people regularly. Over 60 million photos (4) ____every day and a word or phrase (5) ____ to the photo, called a 'tag'. People often vote for other photos they like by clicking 'Like'. Over 10,000 'Likes' (6) ____ to photos every day on lnstagram!

P4 15.3 ex2 Present simple passive with extra options

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