Надо написать множественные числа слов: bag, child, wolf, boy, box, strawberry, tomato, cherry, scarf, elephant, baby, foot, knife, man, watch, leaf, butterfly, glass, owl, mouse.

Here is the list of the words you provided with their corresponding plural forms, organized by the grammatical rules they follow. Regular Plurals These words follow the standard rule of adding -s to the singular form.

• Bag — Bags
• Boy — Boys (ending in vowel + y)
• Elephant — Elephants
• Owl — Owls

Words ending in -s, -x, -ch, -sh These words require -es to make the pronunciation easier.

• Box — Boxes
• Watch — Watches
• Glass — Glasses

Words ending in -o Most nouns ending in a consonant + o take -es.

• Tomato — Tomatoes

Words ending in -y (Consonant + y) The -y changes to -i before adding -es.

• Strawberry — Strawberries
• Cherry — Cherries
• Baby — Babies
• Butterfly — Butterflies

Words ending in -f or -fe The -f or -fe typically changes to -v before adding -es.

• Wolf — Wolves
• Scarf — Scarves (also "scarfs" is acceptable, but "scarves" is more common)
• Knife — Knives
• Leaf — Leaves

Irregular Plurals These words change their internal vowels or use a completely different ending.

• Child — Children
• Foot — Feet
• Man — Men
• Mouse — Mice

Would you like me to create a practice exercise or a quiz based on these specific plural forms?