You don't look happy to see me.

• Type: a. simple
  • Explanation: This sentence has one independent clause with a subject ("You") and a predicate ("don't look happy to see me"). There are no additional clauses.

They tried very hard but they couldn't win the match.

• Type: b. compound
  • Explanation: This sentence consists of two independent clauses ("They tried very hard" and "they couldn't win the match") joined by the coordinating conjunction "but."

She will come home or I will stay back at her place.

• Type: b. compound
  • Explanation: This sentence contains two independent clauses ("She will come home" and "I will stay back at her place") connected by the coordinating conjunction "or."

In the evening, I am going to the park.

• Type: a. simple
  • Explanation: This sentence has one independent clause ("I am going to the park"). The phrase "In the evening" is an introductory prepositional phrase, not a dependent clause.