Выберите один из нескольких вариантов: They _______ making the movie yet.

haven't finished is the correct answer. Here's why: The sentence is in the Present Perfect Continuous tense, which is used to describe an action that started in the past and is still continuing now. The structure of Present Perfect Continuous is 'have/has + been + verb-ing'. To make a negative sentence in Present Perfect Continuous, we add 'not' after 'have/has'. So, the correct structure for a negative sentence is 'have/has + not + been + verb-ing'. In this case, the subject is 'They', which is plural, so we use 'have'. The negative form of 'have' is 'haven't'. Therefore, the correct answer is 'haven't been making'. However, the option 'haven't finished' is provided, which implies that they have not completed the movie yet. It's a variation that also fits the context. Let's analyze other options: * 'didn't finished' is grammatically incorrect because 'didn't' is used with the base form of the verb. * 'haven't finish' is incorrect because 'finish' should be in the past participle form ('finished'). * 'didn't finish' is grammatically correct, but it changes the meaning of the sentence. It suggests a simple past action, rather than an ongoing action. Therefore, the best answer is: haven't finished