Write whether a sentence is simple, compound, complex, or compound-complex.

1-Mrs. Huang planned a party for Kim because she was graduating from high school. Complex

2=She invited Lisa,Elena,and Enrique to the party. Simple

3-Mr. Huang thought that kim's friends should come to the party as their favorite person in history. Complex

4-"It could be fun," Elena told others.
complex

All are correct this time. Nice!

To determine whether a sentence is simple, compound, complex, or compound-complex, it is important to understand the structure and components of each type of sentence.

1- "Mrs. Huang planned a party for Kim because she was graduating from high school." This sentence is complex. It contains an independent clause ("Mrs. Huang planned a party for Kim") and a dependent clause ("because she was graduating from high school").

To check if it's complex, look for the presence of a dependent clause, which is a group of words that cannot stand alone as a sentence. In this case, "because she was graduating from high school" is the dependent clause, and it relies on the independent clause to form a complete thought.

2- "She invited Lisa, Elena, and Enrique to the party." This sentence is simple. It consists of only one independent clause ("She invited Lisa, Elena, and Enrique to the party"). Simple sentences have only one subject and one verb, and they express a complete thought.

3- "Mr. Huang thought that Kim's friends should come to the party as their favorite person in history." This sentence is complex. It includes an independent clause ("Mr. Huang thought that Kim's friends should come to the party") and a dependent clause ("as their favorite person in history").

Similar to the first example, identifying the presence of a dependent clause helps determine it's a complex sentence. "As their favorite person in history" is the dependent clause, which relies on the independent clause to express a complete idea.

4- ""It could be fun," Elena told others." This sentence is complex. It contains an independent clause ("Elena told others") and a dependent clause ("It could be fun").

To verify if it's complex, look for the dependent clause. In this case, "It could be fun" functions as the dependent clause, as it cannot stand alone as a complete sentence without the independent clause.

In summary:

1- Complex sentence
2- Simple sentence
3- Complex sentence
4- Complex sentence