1. Social media groups such as Facebook are preferred by many age.
2. Sarah decided to wait for another phone before going out.
3. We will be meeting face - to - face at 3.00 p.m next Friday.
4. They told the first sewing machine Walter Hunnt had been built by us
5. I do agree with the idea that we should develop robots to help us with the housework.
6. Susan said she would send an email to her professor.
7.My uncle asked where he could see some models of spaceship.
8. Alex asked Tom whether he would go with her to the space exhibition.