The main clause is clams and the subordinate clause is fresh used as an adjective.
Who are they??? This isn't even a legit question
Answer:
he said that he might prepare the lesson before going to class
Explanation:
I think it's not valid because it doesn't say everything with six legs is an insect. As it is, the banquet table and insects just share a common trait. So, I would add that "Everything with six legs is an insect" before claiming that "the banquet table is an insect".