The plural of studio is studios
For the answer to the question above, I believe it is various forms of be.
The most common linking verbs are, am, is, are, was, were, being, and been, so the correct answer is the third choice among the given questions.
Explanation:
1.Brad says he <u>can</u> speak four languages but he <u>couldn't</u> talk to customers yesterday as he was a bit nervous. [Option B]
2. You needn’t have discussed about what happened last day. [Option C]
Hope this helps you.