The sounds of infants' babbling begin to resemble the household language when infants are about _____ months old.

The sounds of infants' babbling begin to resemble the household language when infants are about 6 to 8 months old. During this developmental stage, infants start to experiment with the sounds and rhythms of speech they hear from their caregivers. They may begin to imitate certain phonetic patterns and sounds used in their environment, making their babbling increasingly similar to the language spoken around them. This is an essential milestone in language acquisition as it sets the foundation for more advanced verbal communication skills that will develop in the coming months. By around the age of 12 months, many infants typically begin to produce their first real words, marking another significant step in their linguistic development.