What change is needed to form a complete sentence below? At the library.

a) Add the subject We and the predicate are studying before at.

b) Add the subject We.

c) Add the word together at the end.

d) No changes need to be made.

A

Explanation:

"At the library" is already a vague statement as is. Therefore you add "we" and the predicate "are studying" before at. The outcome would be, "we are at the library." It leaves no room for vagueness.

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