Unit1 Tales of the unexplained Grammar and usage教学讲解课件(牛津版必修2)
Unit1 Tales of the unexplained Grammar and usage教学讲解课件(牛津版必修2)第4页

Present perfect tense

The boy is very happy. The boy ___________ (catch)a bird.

Connection with the past: The boy caught a bird.

Connection with the present: The boy is happy.