Can you check if these sentences are simple, fragment, compound, or complex?:

"Since the movie would last two hours, after dropping off the kids, mother decided to go shopping."
Complex?

"Kelly read The Plague as her summer novel."
Simple?

"Lawmakers frustrated with all the delays."
Fragment?

"We knew that we would lose the game and the opportunity of a state championship."
Is this simple (or compound)?

"Two years ago, the magazine Geo-World predicted that the planet's weather changes would affect all parts of the world, especially the poles, which are losing ice rapidly."
Complex?

"Popcorn is my favorite snack."
Simple?

"Our vacation to Denver was great, but the drive home was too long."
Compound?

"Thinking of selling the house."
Fragment?

"The city is building a new theatre."
Simple?

"Whenever the store manager decides to close early, I always have to call to get a ride home because I don't have a call."
Complex?

Thanks Ms. Sue, although that question was actually complex:/ Not sure why tho

Yes, it is a complex sentence.

"We knew that we would lose the game and the opportunity of a state championship."

I thought about complex and then changed my mind.

We knew >> independent clause
that we would lose the game and the opportunity of a state championship." >> dependent clause.

To determine whether the sentences are simple, fragment, compound, or complex, we need to analyze their structures.

1. "Since the movie would last two hours, after dropping off the kids, mother decided to go shopping."
This sentence is complex. It contains a dependent clause ("Since the movie would last two hours") and an independent clause ("mother decided to go shopping").

2. "Kelly read The Plague as her summer novel."
This sentence is simple. It consists of a subject ("Kelly") and a verb ("read") without any additional clauses or phrases.

3. "Lawmakers frustrated with all the delays."
This sentence is a fragment. It lacks a subject-verb pairing, making it incomplete and not conveying a complete thought.

4. "We knew that we would lose the game and the opportunity of a state championship."
This sentence is compound. It contains two independent clauses ("We knew that we would lose the game" and "the opportunity of a state championship") joined by the coordinating conjunction "and."

5. "Two years ago, the magazine Geo-World predicted that the planet's weather changes would affect all parts of the world, especially the poles, which are losing ice rapidly."
This sentence is complex. It contains an introductory dependent clause ("Two years ago"), a main clause ("the magazine Geo-World predicted that the planet's weather changes would affect all parts of the world"), and a relative clause ("especially the poles, which are losing ice rapidly").

6. "Popcorn is my favorite snack."
This sentence is simple. It consists of a subject ("Popcorn") and a verb ("is") without any additional clauses or phrases.

7. "Our vacation to Denver was great, but the drive home was too long."
This sentence is compound. It consists of two independent clauses ("Our vacation to Denver was great" and "the drive home was too long") joined by the coordinating conjunction "but."

8. "Thinking of selling the house."
This sentence is a fragment. It lacks a subject and a verb, making it incomplete and not conveying a complete thought.

9. "The city is building a new theatre."
This sentence is simple. It consists of a subject ("The city") and a verb ("is building") without any additional clauses or phrases.

10. "Whenever the store manager decides to close early, I always have to call to get a ride home because I don't have a car."
This sentence is complex. It contains a dependent clause ("Whenever the store manager decides to close early") and an independent clause ("I always have to call to get a ride home because I don't have a car").

"We knew that we would lose the game and the opportunity of a state championship."

Is this simple (or compound)? >> compound

Your other answers are also correct.