单项选择题 He is a （）person，so whatever he does，he is always full of hope and sure of success，and he won’t give up without a fight.

单项选择题 Look，you can see many （）in the pool.And here is some （）for you to keep them.

单项选择题 —John，do you like online games？—No.I never play online games.I think it’s a waste of time and （）.