单项选择 较易0.85 引用1 组卷56
It is our school's ________ that students must wash their hands before meals.
A.duty | B.promise | C.rule |
2020·四川乐山·一模
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We should treasure lives. Everybody has no________ to take risks with others’ lives.
A.need | B.right | C.duty | D.reason |
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