1 . Niki is always full of ideas, but ________ is useful. (用适当的词填空)

2 . Despite his serious illness, the old man had lost _____ of his enthusiasm for life.(用适当的词填空)

3 . Although Rosemary had suffered from a serious illness for years, she lost _______ of her enthusiasm for life. (用适当的词填空)

4 . John didn’t choose any of the three jackets because he found ________ of them satisfactory. （用适当的词填空）

5 . ________of us has seen the film, so everyone wants to see it. （用适当的词填空）

6 . My brother would like to buy a good watch but________was available from that shop. （用适当的词填空）

7 . Grace is always full of ideas, but _____________is useful to my knowledge.

8 . —How many students are there in the classroom now?
（用适当的代词填空）—________. I have locked it.