must i take the cold medicine three times a day?改为被动能去掉MUST吗?改成was the cold medicine taken by me three times a day?请问为什么呢改成is the cold medicine taken by me three times a day?
问题描述：
must i take the cold medicine three times a day?改为被动能去掉MUST吗?
改成was the cold medicine taken by me three times a day?
请问为什么呢
改成is the cold medicine taken by me three times a day?
答
不能去掉的
Must the cold medicine be taken by me three times a day?
答
当然不能去掉must了建议你还是先把它改为陈述句的被动句,那就是I must take the cold medicine three times a day.the cold medicine must be taken three times a day by me.所以变成疑问句就是Must the cold medic...