【题目】At present, we have come to sense that creativity is _____ it takes to keep a nation highly competitive.
A.what
B.why
C.how
D.that

【答案】A
【解析】考查表语从句。本题what引导表语从句what it takes to keep a nation highly competitive.并在句中做takes的宾语。句意：随着时间的流逝，我们逐渐意识到创造性是让一个国家有竞争力需要的事情。故A正确。