Historians note that the printing press _________ in the 1450s, when Johannes Gutenberg introduced movable type to Europe, revolutionizing the spread of information.

7
writing

Which choice completes the text so that it conforms to the conventions of Standard English?

A

was first used

B

is first being used

C

was first used by

D

was first being used

Correct Answer: A

Choice A is the best answer. The sentence describes a historical event. The passive voice "was first used" in the simple past tense is correct.