They were children.Four and five-year-olds,为什么old加s
They were children.Four and five-year-olds,为什么old加s
of whom four or five lived till they were five years old 是四五
They were surprised that a four-year-old boy should work out
year olds还是years old?
sixteen year olds 还是sixteen year old?
Five—year—olds are very naughty.I agree .They can't stop pla
Lucy and Lily could swim when they were five years old .改为否定
Lucy and Lily could swim when they were five years old .一般疑问
完形填空Children often wish they were grown-ups and old people w
----_____is four and five?----It's nine
five-six-year olds是什么意思与five six-year olds的区别是什么
为什么Six Years Old.中Year要加S呢?