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Everyone knows that YouTube is a free video sharing site which (A1) ... it easy to watch online videos. The site was created in 2005 by Chad Hurley, Steve Chen and Jawed Karim, three young men who (A2) ... at the same company. They (A3) ... to think of a concept for a new website for several months when they came up with the idea of a video-sharing website.
Once the new website had been set up, they uploaded their first video. It (A4) ... Me at the Zoo and it showed Jawed Karim visiting San Diego Zoo. The short film attracted a lot of viewers and it (A5) ... long for the site to become extremely popular. Today, YouTube is estimated to be one of the most popular websites in the Internet. Millions of users around the world (A6) ... accounts on the site that (A7) ... them to upload videos that anyone can watch.
1) makes 2) is made 3) has made 4) was making
1) will all work 2) all worked 3) were all working 4) have all been working
1) have tried 2) were tried 3) had been tried 4) had been trying
1) called 2) was calling 3) has called 4) was called
1) didn’t take 2) wasn’t taken 3) isn’t taking 4) hadn’t been taken
1) are created 2) have created 3) were created 4) have been created
1) will be allowed 2) have been allowed 3) allow 4) are allowed
Ответы к упражнению:A1- 1; A2-3; A3-4; A4-4; A5-1; A6-2: A7- 3.