We often take part in after class activities(活动).I like to play ____ basketball , but my brother likes to play ____ guitar .
---Do you know ______ I could pass the exam? ----Sorry, I’ve no idea.
We often hear him ______ the piano in the afternoon.
I don’t remember _______ the book yesterday.
_______ useful information it is!
She is a _______ girl and she always says to her teachers _______.