Today’s homework is easier than last time.
请问老师:这里than 后面是省略了the homework吗?
Today’s homework is easier than (the homework) last time. last time是做时间状语吗?
Today’s homework is easier than (the homework) last time.
按你上面的改写,last time 似乎应该是后置定语。
如果改写成下面这样:
Today’s homework is easier than (the homework you did) last time.
这样的话,last time 才是时间状语。