Improve the grammaticality: I hope my professors know that their student already have lots of homework.
The,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The first sentence is not a proper noun. The second is a proper noun.
- The second sentence is a noun. The first sentence is a noun.
- The third sentence is a noun. The first sentence is a noun.
- The fourth sentence is a verb. The first sentence is a verb.
- The fifth sentence is a verb. The first sentence is a verb.
- The sixth sentence is a noun. The first sentence is a noun.
- The seventh