单项选择 较易0.85 引用1 组卷159
—________ I wear a helmet（头盔）when I ride an electric bike?
—Yes, you must.
—Yes, you must.
| A．Shall | B．Can | C．Must | D．Could |
2021·天津红桥·一模
类题推荐
— Mum, must I come back home before 20:00 tonight?
— No, you ________. You can come back a little later.
— No, you ________. You can come back a little later.
| A．needn’t | B．can’t | C．mustn’t | D．shouldn’t |
—What kind of house do you want to have? Something big?
—Well, it _______ be big. That’s not important.
—Well, it _______ be big. That’s not important.
| A．mustn’t | B．can’t | C．needn’t | D．won’t |
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