The Green Corporation donated the property to the state of California, with one condition ________ the Green family would be allowed to use it when they wished．
A.what
B.which
C.when
D.that
网友回答
D解析本题考查名词性从句。题意为：格林公司把这片地产捐赠给了加州政府，唯一的条件是格林家族在需要时可以使用它。condition后面接的是同位语从句，从句中不缺成分，因此用连接词that。