现在进行时的被动语态，这是本单元的语法重点。在这一课中我们将会遇到大量的例句。
Tell the students that today we are going to practice grammar item: First of all tell the students something about the grammar- the passive voice of present continuous tense.
现在进行时的被动语态，这是本单元的语法重点。在这一课中我们将会遇到大量的例句。
Tell the students that today we are going to practice grammar item: First of all tell the students something about the grammar- the passive voice of present continuous tense.
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