单项选择题

Which of the following sentences as INCORRECT

A. Had I better take him upstairs
B. Had I not better take him upstairs
C. Hadn’t I better take him upstairs
D. Had I better not take him upstairs
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单项选择题
Which of the following is true according to the passage
A．A cold is one of the most dangerous diseases human being always has to put with.
B．Cold symptoms should be given prompt medical attention.
C．It is believed that colds are caused by low resistance.
D．The best way to prevent cold is to keep the body from the virus.
单项选择题
What is one of the reasons Neal decided to participate in the triathlon
A．He is bored by his summer job.
B．He is representing his company.
C．He wants to impress his friends.
D．He wants to go to the Olympics.
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