The local Tibetans and Sherpas laughed at the strange bottles containing ________ they referred to as “English air”

Our bodies are strengthened by takingexercise．_______our minds are developed by learning．

The weather is too cold ____ March this year.——It was still ____ when I came here years ago.

____all the students at school today—No. Jim ____ at home.

– Would you please tell me how tosettle this maths problem— Oh, sorry, I can’t You can go and askJohn for help He has the goods The underlined part probably means _____