Though there are many energy-saving products, people đont want to use them 
=> in spite of having many energy-saving products, people don't want to use them
Its time you take better care of yourself
=> its time you looked after yourself
"What an attractive simple you have!" Peter said to mary
=>Peter complemented Mary on her attractive simple 
complement sb on sth: khen ai đó cái gì
I have never met peple who are more pleasant than them
=> they are the most pleasant people i have ever met
They heard her make an interesting speech
=> she ? 

Though there are many energy-saving products, people đont want to use them
=> in spite of many energy-saving products, people don't want to use them.
Its time you take better care of yourself
=> its time you look after yourself.
"What an attractive simple you have!" Peter said to mary
=>Peter complemented Mary's simple attraction.
I have never met peple who are more pleasant than them
=> they are the person whom I have never met are more pleasant than them.
They heard her make an interesting speech
=> she was heard to make an interesting speech.

#NoCoppy