Chuyên đề 10: Động từ khuyết thiếu
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It is forbidden to sell cigarettes to children A. Shops don’t have to sell cigarettes to children B. Shops needn’t sell cigarettes to children C. Shops shouldn’t sell cigarettes to children

37/60

It is forbidden to sell cigarettes to children

Shops don’t have to sell cigarettes to children

Shops needn’t sell cigarettes to children

Shops shouldn’t sell cigarettes to children

Shops mustn’t sell cigarettes to children

Giải thích

Chọn D