there are lots of people _____(stand) in line to wait for the bus.要doing吗?
问题描述：
there are lots of people _____(stand) in line to wait for the bus.要doing吗?
是wait！
答
要,因为前面有明确的谓语动词are,所以后面要采用非谓语动词的形式,而 people 和stand是主动关系,所以应该用standingare应该是是的意思，不是be动词吧英语语法中，is am are 统称为be动词，翻译成 “是”