至今，145个国家参加了2015意大利米兰世博会。
So far, 145 countries __________________________ the 2015 World Expo in Milan, Italy.
have taken part in/joined in/attended
一朵桃花的什么结构被虫子吃掉后，这朵花就结不出果实来？（ ）
与《天朝田亩制度》相比，《资政新篇》最突出的特点是
Nowadays more people realize the importance of health and________health is wealth has been accepted by most of us.
