—What do you think of the book? —Oh , excellent. It’s worth ______a second time.

______ a family of chimps wake up is our first activity of the day.

I saw an old man was standing at the corner, with a hat in his hand,____ handouts（施舍物）

----What do you suppose made her worried ? ----______a  gold  ring .

I like getting up very early in summer.The morning air is so good _____.