求解一道高中英语语法题

问题描述:

求解一道高中英语语法题
Mandela once said,“One of the things that made me long_______ back in * was that I had little opportunity for reading,thinking and quiet reflection.
be

long to do 表示渴望,希望做某事
long to be back表示希望回到~
还有不明白的问我~