可以接that或者which。
一、that
that用作关系代词时,指人或事物,同时又在从句中充当句子成分。that偶尔也可引导非限制性定语从句。
二、which
which用作关系代词,可引导限制性定语从句或非限制性定语从句,引导非限制性定语从句时which可以用整个主句作为其前行词,相当于and that,有时还可引导不定式短语从句。

相关词组：
see which way the cat jumps 观望形势后再作决策。
not know which way to turn 不知走哪条路好。
know which side one's bread is buttered on 知道自己的利益所在。
tell tother from which 辨别彼此,分清两者。
not know which way to look 不知如何是好。
watch which way the cat jumps 观望形势然后行动。
tell 'tother from which 辨别彼此,分清两者。
That's good wisdom which is wisdom in the end. 最后灵验的话才是至理。

连词，什么词都可以跟的。不过如果两个词，词性要保持一致。例句she likes singing and dancing. sing和dance都用ing