Choose the correct option. James isn't/aren't nervous. The bus isn't/aren't yellow. My cat isn't/aren't funny. My sister and I isn't/aren't happy. The house isn't/aren't white. My friends isn't/aren't lazy. We isn't/aren't the champions. Lions isn't/aren't hungry. They isn't/aren't very clever. The movie isn't/aren't interesting.

Okay, I will help you choose the correct option ('is not' or 'are not') in each sentence. Here are the corrected sentences: 1. James isn't nervous. (Джеймс не нервничает.) 2. The bus isn't yellow. (Автобус не жёлтый.) 3. My cat isn't funny. (Мой кот не смешной.) 4. My sister and I aren't happy. (Мы с сестрой не счастливы.) 5. The house isn't white. (Дом не белый.) 6. My friends aren't lazy. (Мои друзья не ленивые.) 7. We aren't the champions. (Мы не чемпионы.) 8. Lions aren't hungry. (Львы не голодные.) 9. They aren't very clever. (Они не очень умные.) 10. The movie isn't interesting. (Фильм не интересный.) Explanation: * "Isn't" is a contraction of "is not" and is used with singular nouns (one person, place, thing, or idea). * "Aren't" is a contraction of "are not" and is used with plural nouns (more than one) and with the pronoun "you". Also, 'I' требует 'am not', но в сочетании 'My sister and I' мы используем 'aren't', так как подразумевается множественное число – 'мы'.