单项选择题

Discovering consists of seeing what everybody has seen and（）what nobody has thought.

A．think
B．thinking
C．thought
D．to think

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单项选择题
The child（）while watching TV, so his mother put him to bed at once.

A．had fallen asleep
B．was falling asleep
C．fell asleep
D．falls asleep
单项选择题
The manager promised to keep me（）of how our business was going on.

A．to be informed
B．on informed
C．informed
D．informing
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