从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项的标号涂黑。
21.Obama has been elected first black president of the United States, and the international society expects to have new USA under his leadership.
A./, the B.a, the C.the, a D.the, the
22.It is no use her that she doesn’t need to lose any weight.
A.convincing B.suggesting C.advising D.persuading