Rewrite the sentences in the negative and in the interrogative. 1.Cheese is made of milk. Cheese is not made of milk. Is cheese made of milk? 2. The keys are included in the textbook. 3. theatre is a place where plays are shown 4. Elections for President are held every five years in our Republic 5. The teacher is asked to explain the grammar rules every lesson by the students. 6. The books are made of paper. 7. The rice is grown in Kazakhstan.