Question

we had never come across the turtle egg in our walk ​

Answer 1

ANSWER:

 The sentence that is given in the question is a complex sentence.

EXPLANATION:

  The category of sentence in which at least one independent clause and one dependent clause is present is called a complex sentence. Independent clause is the group of words or a clause that has the ability to stand alone as a sentence without depending on any other clause, like the dependent one.  

  In this case, the independent clause is 'We had never come across turtle eggs' and the dependent clause is 'in our walks'.