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Milk bottles need cleaning thoroughly before they are used again, ________they?A
Milk bottles need cleaning thoroughly before they are used again, ________they?A
游客
2023-10-21
44
管理
问题
Milk bottles need cleaning thoroughly before they are used again, ________they?
选项
A、needn’t
B、don’t
C、mustn’t
D、aren’t
答案
B
解析
奶瓶在再次使用前需要彻底清洗,是吗?反意疑问句题。带情态动词dare或need的反意疑问句,疑问部分常用“need/dare+主语”;当dare和need为实义动词时,疑问部分用“助动词do+主语”。该句中的need是实义动词,且陈述部分为肯定,所以应该用助动词do,B项为正确答案。
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