阅读下面短文，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

During the past few months, Harbin 【小题1】 (become) one of the most-visited places. 【小题2】 ice city of Heilongjiang province is in Northeast China. 11 children from Nanning, Guangxi took an 【小题3】 (education) trip to Harbin. People call 【小题4】 (they) “little tangerines” (小砂糖橘). This is because 【小题5】 the orange jackets they wore. The oldest is just six and a half years old, while 【小题6】 (young) is only three years and five months old. In Harbin, they 【小题7】 (eat) the local food and watched a firework show. None of them has 【小题8】 (be) to Mohe before. It was freezing cold in Mohe, but they felt warm, because they were warmly welcomed by a local travel agency (旅行社). Moreover, the police officers at the station spent some time 【小题9】 (make) snowmen and snow sculptures for these children. 【小题10】 a meaningful trip for the “little tangerines”!