Question

correct the text by inserting one comma. (note: in this skill, serial commas are not optional.)as the photographer snapped what would have been a flawless photo a leaf blew into the frame.

Explanation:

The comma is needed to separate the main clause from the dependent clause that follows, clarifying the timing of the two actions. The correct spot is after "photo" to show the interruption of the flawless photo by the leaf.

Answer:

As the photographer snapped what would have been a flawless photo, a leaf blew into the frame.