C Ask and answer
What did people usually do on the phone in the past?
They usually made phone calls and sent messages.
What do people do on the phone now?
They do more things on the phone. They ...
答案：They make video calls, check a map, listen to music, pay for things, get a taxi, do the shopping online, see the doctor online, have online classes, take photos and videos and watch films on the phone now.
