英语笑话：English Joke - Tenses

The teacher says: Today, we're going to talk about the tenses. Now, if I say "I am beautiful," which tense is it?

The student says: Obviously¹ it's the past tense.

NOTES:
Present Tense: I am beautiful.
Past Tense: I was beautiful.
This is funny because the teacher isn't beautiful now, but maybe she was beautiful when she was younger.

1 obviously   

adv.显然；明白地

参考例句：

• Obviously they were putting him to a severe test.显然他们是在给他以严峻的考验。
• Obviously he was lying.显然他是在撒谎。