Never in my wildest dreams ________these people are living in such poor conditions． 

Only when I left home to go to college ___ how much my mother had done for me.

At the meeting place of the Yangtze River and the Jialing River     , one of the ten largest cities in China.

When     help, one often says, “Thank you”, or “It’s kind of you．”

______ you eat the correct foods ______ be able to keep fit and stay healthy.