题目内容
___ is everyone’s duty___ the law.
- A.That; do obey
- B.It; to obey
- C.That; obeying
- D.It; obeying
B
it 是形式主语, 真正的主语是to obey the law.
it 是形式主语, 真正的主语是to obey the law.
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