When the Italian astronomer Giovanni Schiaparelli ................. a map of ...

[ Tenses ]

When the Italian astronomer Giovanni Schiaparelli …………….. a map of Mars in 1877, he …………….. a large number of straight linear features, which he called “canali”, that is, channels.

A. publishes / has noted

B. had published / was noting

C. has published / notes

D. published / noted

Select your answer:

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When the market closed, they complained to the manager.
Who is “they”? Choose the best revision:

A. When the market closed, it was not fun.

B. When the market closed, everyone got mad.

C. When the market closed, several customers complained to the manager

D. When the market closed, complaints happened.

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Subaru Takahashi’s _____ was sailing across the Pacific Ocean alone.

A. achieve

B. accomplishment

C. challenge