It’s not until you have lost your health _______ you always take for granted _____ you know its value.
This project requires close teamwork.will be achieved unless we work well together.
_____ everyone here, I wish you a pleasant journey back to your country.
We’d better ____ some sports because sports can give us a perfect build and protect us from getting illness easily.
Clothing made of man-made materials has advantage over ____ made of natural ones like cotton, wool or silk.
What surprised me most was ____ to meet his girlfriend again.