5.A:How often ____________ take the medicine?B:You should take it three times a day.A.I shouldB.I should toC.should I

5.A:How often ____________ take the medicine?B:You should take it three times a day.A.I shouldB.I should toC.should I
5.A:How often ____________ take the medicine?B:You should take it three times a day.
A.I should
B.I should to
C.should I

5.A:How often ____________ take the medicine?B:You should take it three times a day.A.I shouldB.I should toC.should I
答案：C
解析：在疑问句中要用疑问句语序,而A和B是陈述句语序,是错误的
翻译：我应该多久吃一次药?
你应该一天吃三次药.
有不明白的请继续追问,

C.should I
我应该多久服一次药？
你应该一天吃三次药。
可追问，望采纳：） 【英语牛人团】