Answer:

(4) Compound

(5) COMPLEX

(6) Compound Complex

(7) Compound

(8) Complex

(9) Compound

(18) Complex

(19) Complex

(20) Compound

(21) Compound

(22) Compound

Explanation:

Simple Sentence: A sentence that contains a single CLAUSE.

The mother lion SAW her cubs.

The mother lion is the subject and saw is the verb.

Compound Sentence: A sentence with minimum of two CLAUSES joined together with a coordinating conjunctions like because, if, that, while, when etc.

The mother lion saw her cubs and she became happy.

The mother lion - Subject and saw - finite verb (1 clause)

she - subject and became - finite verb (2 clause)

The two clauses are joined with and, and is hence a compound sentence.

Complex Sentence: A sentence which contains minimum of 2 clauses and are joined together with subordinating conjunctions like for, yet, and, so that, wh-words.

When the mother tiger saw her cubs, she became happy.

The mother lion - Subject and saw - finite verb (1 clause)

she - subject and became - finite verb (2 clause)

The two clauses are joined with when, and is hence a complex sentence.

Hope it helps