GOD'S WORD® Translation
The official answered, "How can I understand unless someone guides me?" So he invited Philip to sit with him in his carriage.

American Standard Version
And he said, How can I, except some one shall guide me? And he besought Philip to come up and sit with him.

Berean Study Bible
“How can I,” he said, “unless someone guides me?” And he invited Philip to come up and sit with him.

Douay-Rheims Bible
Who said: And how can I, unless some man shew me? And he desired Philip that he would come up and sit with him.

English Revised Version
And he said, How can I, except some one shall guide me? And he besought Philip to come up and sit with him.

King James Bible
And he said, How can I, except some man should guide me? And he desired Philip that he would come up and sit with him.

World English Bible
He said, "How can I, unless someone explains it to me?" He begged Philip to come up and sit with him.

Young's Literal Translation
and he said, 'Why, how am I able, if some one may not guide me?' he called Philip also, having come up, to sit with him.

Acts 8:31 Additional Translations ...