Question

the young fellow is a kindhearted man and always thinks of __he can do more for his neighbor填什么

第一题the young fellow is a kindhearted man and always thinks of __he can do more for his neighbors
答案选how，说从句不缺成分；但我觉得do缺了宾语所以选what。
第二题to expand economy,the mayor has made ambitious plan to turn his city into a place___young people would choose to inhabit rather than leave.
答案填that，认为从句缺宾语，但我认为choose作不及物动词，从句就不缺成分，可以用where。

Answer 1

1. do 的后面有一个more，使得这里只能填how

   填what组成宾语从句what he can do ，后面不能接more

   填how意为他整天考虑如何能为邻居做更多的事

2. 这里要用that 或者which

   choose后面已经有to do 了，要看inhabit 和leave 这两个动词

   inhabit两者都可，leave为及物动词，即leave the place，不缺介词

Answer 2

1. 句中确实不缺成分，do 的宾语是 more ，完整的其实是 do more things;
   

2. choose是及物动词，比如choose a person, 所以题中choose 缺少一个宾语，用that