当他在台上演讲时，几个学生在后排嘲笑他。

Some students at the back were ___mocking him while he was giving a speech.

孩子们模仿老师的口音来取笑他。

The kids were ___mocking their teacher's accent to make fun of him.

我们组织了一场模拟面试来练习求职技巧。

We organized a ___mock interview to practice job-hunting skills.