中級閱讀模擬測驗　第二回

Not long ago, most people carried cash or credit cards when they went shopping. Today, however, a smartphone is often all they 11. With mobile payment apps, a customer can simply scan a code to pay in just a few 12. This is faster and more convenient than counting coins. Stores also benefit, because they no longer have to keep large 13 of change. Of course, some users still 14 about the safety of their accounts. Experts suggest setting a strong password and never sharing it, so that mobile payment stays both easy and 15.

A smart speaker is a small device that can answer questions and control other machines by voice. Many families now 16 on one to make daily life easier. In the morning, you can ask it about the weather 17 getting out of bed. It can also play music, set alarms, and even turn off the lights for you. However, because the speaker is always 18 for your voice, some people worry that it may record private conversations. To protect their privacy, users are 19 to turn off the microphone when it is not needed. Used wisely, a smart speaker can be a truly 20 helper at home.