单项选择 适中0.65 引用1 组卷58
For the safety of all the passengers，objects like guns，knives or fireworks be carried onto trains，planes or coaches．
| A．may | B．needn't | C．should | D．mustn't |
2019·山东济南·一模
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According to the local rule， children under the age of 12 ride a shared bicycle in Nanjing．
| A．needn't | B．shouldn't | C．mustn't | D．may not |
—Can I take some milk and biscuits to the reading room?
—No. In our school it is a rule that students ______ eat or drink there.
—No. In our school it is a rule that students ______ eat or drink there.
| A．don’t have to | B．shall not | C．needn’t | D．mustn’t |
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