Would you be so kind __ help me with my English?[ ]

It is such a good place _____ everybody wants to go and visit _____ it is well-known all over the world.

are found on all kinds of trees,butthey differ greatly_____ size and shape

How are you going to spend this weekend —_________ the weather is fine, we’ll climb Mount Tai.

Is that _________sister, Dave– No, it isn’t. She is my friend.