Mum， it's too hot． ___________I swim in the lake with my friends？
No， you ___________． That's too dangerous!（ ）
A．Could；mustn'tB．Need；couldn't
C．Must；needn'tD．Should；can't
Mum， it's too hot． ___________I swim in the lake with my friends？
No， you ___________． That's too dangerous!（ ）
A．Could；mustn'tB．Need；couldn't
C．Must；needn'tD．Should；can't
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