问题
选择题
It takes about 30 minutes _______ a bicycle from my home to school.
A．ride
B．riding
C．to ride
D．rides
答案
答案：C
形式主语it，真正的主语位于句尾用to do，故选C。
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It takes about 30 minutes _______ a bicycle from my home to school.
A．ride
B．riding
C．to ride
D．rides
答案：C
形式主语it，真正的主语位于句尾用to do，故选C。