用方框中所给单词的适当形式填空，每词仅用一次（每空一词)。

Carl and Chris are two brothers from a town in Australia. When a mother kangaroo dropped her baby, they to see and decided to look after it. The baby kangaroo was very active and always running around the brothers' garden. It was so that the family loved to play with it. The brothers also made a short movie about this. At once it became the on the Internet, and had many 'hits' and comments. We say that a movie has a 'hit' each time everyone watches it on the Internet.

Nowadays with a smart mobile phone can make a short video or even a movie! And if you can upload it onto a media-sharing website, such as YouTube, you may have many own . And you have become a video or movie producer, too.