赞题库-背景图

单项选择题

At the end of the passage the author seems to suggest that life in future is ______.

A．disastrous
B．unpredictable
C．exciting
D．colourful

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热门试题

单项选择题According to the passage, which of the following statements is NOT true

A．Human beings used tools more than two million years ago.
B．Human beings used to have sharp teeth like other animals.
C．Human beings developed their intelligence by working with tools.
D．Human beings began to use stone chips a very long time ago.

单项选择题The stone chip is thought to be the most important tool because it _______.

A．was one of the first tools
B．developed human capabilities
C．led to the invention of machines
D．was crucial to the development of mankind