Use the suitable transition in the spaces.

For example - Instead of - As a result Moreover - However

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The most important effect of the computer is that communication has been totally revolutionized.

1. __________, in the past, people wrote letters, which would often take weeks to reach their destinations. 2. ____________, now they can send an e-mail and, 3. ___________ waiting weeks for a letter, we can read it instantly, seconds after its been written. 4. _________, many people use computers to communicate with people all around the world using chat rooms and chat programs. This was impossible before the computer became widespread. 5. ___________, people who live thousands of kilometers away from each other can communicate as much as they want and whenever they want.