问题
选择题
There are many kinds of metals, ______.
A．each having its special properties
B．having its special properties
C．one has its special properties
D．each has its special properties
答案
答案：A
本句考察独立主格结构。B没有主语；逗号不能连接两个独立完整的句子，因此排除C，D；只能选A。句意为“金属有很多种，每一种都有它的特性。”
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