题目内容：

The owner of the cinema needed to make a lot of improvements and employ more people to keep it running,__meant spending tens of thousands of pounds.选which?

优质解答

嗯.选which.
这个从句,中间有个逗号,就用which.
没逗号的话,that,what都可以.
如果是两个句子,中间是个句号.那么用it.this.