52  谁能完成它？Who can finish it ?

53 咱们来练习。 Now let's practice it .

4  你能做吗？Can you do it?

55 先举手,再回答。 Raise your hand before you speak 。 Raise your hand before  speaking.

6  我讲话时不要打断。Don't interrupt me while I am speaking.

7 打断别人讲话是不礼貌的。 It's impolite to interrupt others.

8 你该怎么做？ What should you do with this?

59  他错在哪儿？Where did he make a mistake?

60 这个动物发什么声？ What sound does this animal make?

61 她说对了吗？ Did she say that correctly?

62他对吗？ Is he right?

63 做得对！Well done!

64  首先,我们来复习。First, let's do some revision.

5  下课。That's all for this lesson.

6 下课。 You are dismissed.

7  下课。The class is over.