问题
选择题
He feels it his duty ____ others.
A．to help
B．to be coming
C．help
D．helped
答案
答案：A
it作形式宾语，真的宾语是后面的不定式。
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He feels it his duty ____ others.
A．to help
B．to be coming
C．help
D．helped
答案：A
it作形式宾语，真的宾语是后面的不定式。