1 Car tires are recycled to make pipes and floor coverings
2 It is easy to do this exercise
3 I was running to school when I stumbled the rock
4 He was watching TV at home this time yesterday
5 he asked me how to go from my house to school
6 telephone is invented by AGB in 1876
7 I don't know how to connect to a printer
8 I have already done Hw