36) solar energy/ so that/ can be stored/ on cloudy days/ for a number/ the energy / too/ of days, / you can use
-> The energy can be stored a number of days, so on cloudy days you can use solar energy, too.
37) though there are many energy-saving products, people don't want to use them
-> In spite of the fact that there are many energy-saving products, people don't want to use them.
38. It's time you look after yourself well.
Take care of = look after: chăm sóc
39. Jane suggested Rob should come over there and help pick up the trash.
suggest sb should V: khuyên ai nên làm gì
40. The laboratory is being worked with a lot of chemicals by the students.