I find _________difficult to work with the man.

—The books are so nice, which one can I take? —Oh, you can take _______ of them. I’ll keep none.  

The weather in Guangzhou is hotter than ________ in Beijing in summer.

____seems very hard to reach the top of the mountains.

— How pleasant 　　　 is to go fishing with my father! — Yes. Parents and children should spend more time together.