单项选择题

Mr. Morgan gradually_________ a knowledge of the subject.

A．attained
B．required
C．acquired
D．enquired
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单项选择题
The news item about the traffic accident is followed by a detailed report made _________.
A．on the spot
B．on the location
C．on the ground
D．on the site
单项选择题
Molten iron is poured into the mixer in the same way _________ tea is poured into a cup from a teapot.
A．as
B．that
C．since
D．like
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