come
are to come 是【be + 不定式】表将来
They are 【to come】to our schooland cheer us on.
They are 【going to come】to our schooland cheer us on.题目上只留下两个空格啊？能不能写成They are【arrivingto】 our schooland cheer us on。arriving at或者：to reachThey 【are coming】to our schooland cheer us on.They 【两个空格】to our schooland cheer us on.你的题目怎么老在变？ 把我弄晕了 ：）They 【 are getting】to our schooland [to]cheer us on.get to 到达