1. ___has created a good condition for SMS.
　　[A] Multi-media messaging service
　　[B] Mobile communications technology[C] Mobile communications service
　　[D] Mobile communications technology and service
　　2. By MMS, short messages can be transmitted except between____
　　[A] cell phones
　　[B] computers
　　[C] cell phone and computer
　　[D] mobile phone and computer
　　3. People sometimes don't enjoy SMS because
　　[A] SMS also sends rubbish short messages
　　[B] SMS violates their privacy
　　[C] SMS does not consider whether people need it or not
　　[D] SMS doesn't get people's permission to send them messages
　　4. MMS may violate people's privacy because____
　　[A] SMS doesn't take measures to forbidden it
　　[B] SMS doesn't guarantee people's privacy
　　[C] it makes rubbish short messages transmission easier
　　[D] it extends the scope and influence of rubbish short message
　　5. From the text we know that____
　　[A] people should refuse rubbish short messages
　　[B] SMS should think of a way to get rid of rubbish short messages
　　[C] MMS should not allow people to send messages from the Internet to cell phones
　　[D] SMS benefits from rubbish short messages