Question

She read a letter (past perfect tense)

Answer 1

Answer:

She had read a letter

Explanation:

Rule of past perfect -Subject +had+verb's 3rd form +object(If have written there)

So here the subject is 'She',then had and then the 3rd form of read is 'read' and the object is 'a letter'.So the answer is 'She read a letter'.

Answer 2

Answer:

She had read a letter