Question

My brother had gone ---- hour ago. (put it determiner)

Answer 1

My brother had gone an hour ago.

hope it helps you

Answer 2

"My brother had gone an---- hour ago. Determiners are words which come toward the start of the thing expression.

They disclose to us whether the thing expression is explicit or general.

Determiners are either explicit or general

Explicit determiners:

The particular determiners are:

the distinct article: the

possessives: my, your, his, her, its; our, their, whose

demonstratives: this, that, these, those

interrogatives: which"