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【题目】How long do you think _________ the computer company launches a new model?

A. it will be before B. will it be until

C. will it be when D. it will be that

【答案】A

【解析】it be 一段时间before从句;一段时间以后某事才发生。Before后面的时间状语从句使用一般现在时代替将来时,前面的主句使用将来时。本题是对“一段时间进行提问”。故C正确。

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