[题目]Many scientists believe that robots able to talk like humans in 50 years.A．were B．areC．will be D．have been 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】Many scientists believe that robots ______ able to talk like humans in 50 years.

A．were B．are

C．will be D．have been

【答案】C

【解析】

试题分析：句意：许多科学家认为，五十年过后，机器人将能够像人类一样说话。描述“五十年后”将要发生的动作或状态，用一般将来时态。故选C。

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