A、  B、  C、  B以疑问词开始的特殊疑问句，把握疑问词是解决问题的关键。这道问题询问的是会议召开的地点，只有(B)项是关于地点的，因此是正确答案。(A)项中的hold是“拿，抓”的意思，与题干中的held(召开，举行)

What position are you applying for?
(A)I gave her the application.
(B)The staff writing position.
(C)It’s on the left side of the street.

Where was the convention held last year?
(A)It’s too hot to hold.
(B)It was in Cairo, Egypt.
(C)The first weekend of September.