Answer:
The students of first grade open their interactive notebooks at 10 o'clock everyday.
Explanation:
Before making a sentence that includes a common noun and a compound common noun, we must know what these types of nouns are. A common noun is one that name persons, places, things or animals in a general way, thus, they are not capitalized unless they begin a sentence or are part of a title, for example, music, castle, diamond, mint, finger, animal, person, thing.
On the other hand, a compound common noun is a common noun that consists of two or more words; they can be written as one word like <em>breakfast</em>, as two or more words such as <em>washing machine</em> or with a hyphen like <em>lamp-post.</em>
The sentence provided <u>has three common nouns:</u><em><u> students, grade </u></em><u>and</u><em><u> notebooks</u></em><u>, and one compound common noun: </u><em><u>notebooks</u></em><u> (note + books).</u>