Passage 1 Nowadays, more and more students are using emails to communicate. Several reasons why email has become a great tool are that it is fast, ________(1), and affordable. In the past, students often use traditional letters to _________(2) ideas. However, the turn-around time for sending and receiving traditional letters can take ________(3) months. Furthermore, students have to pay high international postage to send the letters. With email, however, messages can be sent at a click of a button at school, home, or an Internet cafe, and if you are using a free email ________(4), the cost is free. Instead of waiting days or weeks for a ________(5), students can receive a reply quickly.