单项选择题

Who modified and improved the design of the steam engine in 1765

A．Thomas Newcomer.
B．James Watt.
C．Thomas Edison.
D．Alexander Graham Bell.
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单项选择题
Canada is bounded on the east by ______.
A．the Pacific Ocean.
B．the Atlantic Ocean.
C．the Indian Ocean.
D．the Arctic Ocean.
单项选择题
Syntactic movement is dictated by rules traditionally called ______.
A．transformational rules.
B．generative rules.
C．phrase structure rules.
D．X-bar theory.
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