When I was studying in England 10 years ago, it (21 be)________ very expensive to make long-distance telephone calls. That is why I (22 call)________ home to talk to my parents only on special occasions. But today communication has become much easier. Emails, video chatting, and video conferencing (23 help)________ millions of people to connect to each other in such a quick and cheap way. Now, from Sweden we (24 use)________ Skype to ʻmeetʼ our parents every week. In 15 years I think I (25 communicate)________ with my children by telepathy and holography when they study away from home!
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Sinh Học lớp 12
