поставте a или an ... teacher is going to give you ... good mark. I have got ... interesting book for you There are ...lot of...parks and...gardens in our town Take ... duster and clean blackboard!

A teacher is going to give you a good mark. — Учитель собирается поставить тебе хорошую оценку. I have got an interesting book for you. — У меня есть для тебя интересная книга. There are a lot of parks and gardens in our town. — В нашем городе много парков и садов. Take a duster and clean blackboard! — Возьми тряпку для пыли и вытри доску.