In fact, placing the rudder in the ship’s center and ...

[ Grammar ]

In fact, placing the rudder in the ship’s center and building the stern into a higher deck were Chinese inventions.

A. Change were to was.

B. correct as is

Select your answer:
A B C D E

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A. command

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C. statement

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logical, sensible

A. reciprocal

B. rational

C. opus

D. inert