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How do we live in a green world?
The lights_______________ when we leave a room.
are turned off
The trees in March every year.
The lights when
we leave a room.
are planted
are turned off
一般现在时的被动语态
passive voice in the simple present tense
结构：
am / is / are + 动词过去分词
Let’s review!
The trees .
The litter everywhere.
were cut down
was dropped
一般过去时的被动语态
passive voice in the simple past tense
结构：
was / were + 动词过去分词
The students in Class1，Grade8 will hold a show in Environment Week. They will invite some famous people to the party.
News:
Who will be invited to the party？
A short funny play ___________________
at the party.
Xiaoshenyang,
give a short funny play
is going to be given
A song ____________ at the party.