单项选择题

By the end of this century intelligent robot ______ to do most of the housework for man.

[A] is expected to be invented
[B] will have been expected to be invented
[C] has been expected to be invented
[D] is expected to have been invented
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A．disturbing
B．annoying
C．confusing
D．surprising
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Who did the WTO’s trade rules hurt according to the activists
A．The activists.
B．The delegates.
C．The workers and farmers.
D．The students.
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