The old lady who caught a bad cold complained that the doctor was ______ too much for the treatment given to her．

The Chinese abacus(算盘), officially ______ as a cultural heritage at the 8th Annual UNESCO World Heritage Congress, is another symbol of Chinese wisdom.

________ us calmly together, our captain made an announcement__________ we must save essential supplies before the day broke.

Last summer, I went back to my hometown,     the neighbors and the houses that I used to be familiar with were gone．

He became inspired when he thought about helping ordinary people _________to cholera.