Перевести предложение на английский используя отрицание и вопрос. Письмо отправ

1) The letter has already sent       Has the letter already sent?      The letter hasn't already sent. 2) There are a lot of houses that are built in our region every year.     Are there a lot of houses that are built in our region every year?     There aren't a lot of houses that are built in our region every year