How long do you think the puter pany brings out a new product?
A. it will be before
B. will it be until
C. will it be when
D. it will be that
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(答案→)A. it will be before
B. will it be until
C. will it be when
D. it will be that
解析：句意:你认为还需要多长时间电脑公司才能生产出这种新的产品。这里do you think是插入语，这里是固定句式it willbe+some time +before+句子。意为：还要过多久才能……,这里是对时间段进行提问，所以用疑问词how long ,因为疑问词后有插入语，当插入语用了疑问语序，它后面的成分就用陈述语序，故选A。