Probably about 5 inches or maybe 6 ...... Depends on the child
two year olds can sleep in both
Yes, "two-year-olds" is hyphenated when used as a compound adjective preceding a noun, such as in "two-year-olds play together." The hyphens help clarify that "two" and "year" modify "olds" collectively. However, when referring to the age alone, you would simply say "two years old."
not two year olds they have to be like 7
The plural form of two-year-old is two-year-olds.
yes
Two-year-olds have accidents.
To do what?
You seem to be having trouble figuring out which word is the noun that needs to be the plural. Which thing do you have more of - twenty, year, or old? Twenty years is the modifier for old. You have two twenty year olds.
Thoroughbreds have to be a minimum of two years old to race. All races have their own age requirements. There are races for two-year-olds, three-year-olds (which are the more widely known ones like the Kentucky Derby, Preakness, and Belmont), three-year-olds and up, and four-year-olds and up.
If Barbie were life-size, she would stand seven feet, two inches tall and have a neck twice the length of a normal human's neck!
If there is enough room in their bedroom, or they have separate bedrooms, twin beds are an excellent choice for two seven year olds.
No, most two-year-olds are not able to count to 10. They are still developing their cognitive skills and may not have the ability to understand numbers in that way yet.