* Bài tập :
__ Turn into the passive voice :
1) They will put solar panels on the roof .
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2) People use the sun's energy to heat water .
--- > ..........................................................
3) They will build a dam for hydro electricity in this area .
--- > ..........................................................
4) He will finish the report before he leaves here .
--- > ..........................................................
5) We will hold the meeting before May Day .
--- > ..........................................................
6) My classmate will tell a story about wildlife .
--- > ..........................................................
7) I will invite him to my birthday party .
--- > ..........................................................
8) Will buses bring the children home .
--- > ..........................................................
9) She will paint this house next month .
--- > ...........................................................