问题
选择题
People all around the world have been doing as much as they can ________the people in Afghanistan.
A．help
B．to help
C．helping
D．helped
答案
答案：B
题目分析：句意：全世界的人们尽他们的全力来帮助阿富汗人民。表示目的，故用不定式作目的状语，选B。
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