Read and complete the rule. Nouns ending in -o, -x, -s, -sh, -ch and -ss form their plurals by adding -es.

Rule:

Nouns ending in -o, -x, -s, -sh, -ch and -ss form their plurals by adding -es.

Examples:

• photo - photos (This is an exception to the rule)
• potato - potatoes
• box - boxes
• bus - buses
• brush - brushes
• watch - watches
• glass - glasses