问题
选择题
You can find whatever you need at the shopping centre, ___ is always busy at the weekend.
A．that
B．where
C．what
D．which
答案
答案：D
考查非限定性定语从句.只能用as或者which引导.而as是当先行词是一个句子时用，再说选项也没有.所以选择D.
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