The government made Beijing ___of the new country.

b 应该说as the captical

A.captial

made 后面是双宾语

这是固定答案，make sb/sth + (sth)是指将某人或某事作为什么，又如We made him captain of the team. 我们选他作为队长。

选A.capatial，是因为这是 同位语。

意为“使（做某事或成为），让”。 它除了要有一个宾语之外，宾语后还要带一个宾语补足语，句意才完整。
可作宾语补足语的有：
（1）名词。如：
He made her his wife.
他娶她为妻。
2）形容词。如：

It'll make me so happy if you accept it.

如果你接受它，我将很高兴。

（3）不带 to 的动词不定式。如：

The teacher made Ann get her book back immediately.

老师让安马上把她的书拿回来。