Tests provide grades,but they also let you know what you need to spend more time studing.
问题描述：
Tests provide grades,but they also let you know what you need to spend more time studing.
上句中,need to是不定式做谓语吗?是否能去掉to,need spend做谓语?谢谢!
答
在这里,need 和to 是分开的噢.是要把what you need 看做一个整体to 加后面的短语是做目的状语的噢!不能省to !