问题
选择题
I think necessary to do some running in the morning.
A．it
B．that
C．this
D．one
答案
答案：A
本题考查代词。题中it作形式宾语，真正的宾语为不定式to do some running in the morning.故选A。
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I think necessary to do some running in the morning.
A．it
B．that
C．this
D．one
答案：A
本题考查代词。题中it作形式宾语，真正的宾语为不定式to do some running in the morning.故选A。
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