中国大学MOOC: People can use online phones to make international calls for free.
举一反三
- People can use online phones to make international calls for free. A: 正确 B: 错误
- Apart from making phone calls, what do people commonly use their smart phones for?
- How can people make use of sea waterThey make use of it by ______________________ the salt.
- 中国大学MOOC: Ordinary people can make a ___________(different) in the world.
- 智慧职教: We can use telephone to make phone calls and send short messages.