I don’t know this English word(单词).—-Well, here is a ______ and it can help you.

The man showed us so heavy a stone ________ no man can lift.

I didn’t see her in the meeting room this morning. She ___ at the meeting.

In the reading room, we found her 　　　 at a desk, with her attention _____ 　　　 on a book.

She was scared theyard because she was scared bythe big dog at the gate.