问题
选择题
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.
A．who
B．that
C．as
D．which
答案
D。
which在此引导非限制性定语从句。注意不能选B，因为that不用于引导非限制性定语从句; 也不能选A，因为who只用于人; 也不能选C，因为as引导非限制性定语从句时，它若用作从句的主语，则其谓语动词通常只能是连系动词。