—Excuse me. _______ I sit here?
—You’d better not. It’s the man’s seat.
Must
Need
Could
Should
Eddie was sleeping _______ Millie was reading a magazine.
We’ll try our best to do the work better with ________ money and _______ people.
The work is _________ ,so I often feel ________.
I hope Millie _______ to my birthday party tonight.
The Yellow River is ________ river in China.