The two sentences that use an adverbial clause are:
- So that we would have enough left for tomorrow, we only used half of the vegetables in the salad.
- Javy was named captain of the team despite it being his first year on the team. (Note: while this sentence does contain a phrase that may seem adverbial, it technically does not contain a typical adverbial clause like "So that we would have enough left for tomorrow.")
Therefore, the correct answer is only the first sentence. If you have multiple-choice options, please ensure to clarify, as the correct interpretations might depend on the context of provided options.