Are These sentences grammatically correct?

Where can i learn about tenses, clauses, verbs, nouns, pronouns, etc?

What are the key elements that you can use to build a story around? adjectives, mood, and resolution character, conflict, and setting climax, suspense, and momentum setting, surprise, and purpose

10. Some people laugh at her.

When her best friend moved away, Donna had a feeling of melancholy wash over her. What does the word melancholy mean in this context? Glee Sadness Aggravation Indifference

Sentence that contains a commonplace assertion about school

Is this external or internal conflict? John's in the cold as he fished through his coat pocket for a match. He had already gathered scraps of wood and piled them to make a fire. Now he had to figure out how to kindle it.

What is the theme of this poem by Langston Hughes? "Still Here" A. suffering B. death C. stamina D. defiance

Which sentence describes how Jacqueline contributed to John F. Kennedy becoming the U. S. President?

Identify the following group of words as either a complete sentence or a fragment. Skated the program beautifully. complete sentence fragment

The weather has been so variant lately that im not sure whether to wear shorts or a down jacket?