单项选择题

Research findings show we spend about two. hours dreaming every night, no matter what we ______during the day.

A．should have done
B．would have done
C．may have done
D．must have done

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单项选择题

Shortage of capital is the main factor that ______economic development.

A．holds out
B．holds on to
C．holds back
D．holds on

单项选择题

There are few electronic applications _____to raise fears regarding future employment opportunities than robots.

A．likely
B．more likely
C．most likely
D．much likely

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