$1.$ They are beautiful dancers.
$2.$ When were you born?
$3.$ Lan received a bike from her parents on her birthday.
$4.$ There are five hundred students in this school.
$5.$ How much is this book?
$6.$ The letter have posted for you.
$7.$ We have studied English for one year.
$8.$ No one footballer in the country better than him.
$9.$ It took me twenty minutes to walk to school.
$10.$ She told me "Don't do that".
