Fill in am/is/are, was/weren't, has/haven't, has/hasn't, can/can't, do/does/doesn't, was/wasn't, were/weren't, had, did/didn't.

Расставь пропущенные знаки препинания.

Сложение и вычитание дробей с разными знаменателями

4. How would you express the same idea to sound more enthusiastic?

19) $x^2 + 4x + 4 = 0$

2. Word building. 1) What words were these nouns derived from? Guess the meaning of the nouns and underline the suffixes of the nouns.

1217. Решите неравенство 2x^2 - 11x + 5 < 0.

2 Write the opposite. 1 He's reading a book. He isn't reading a book. 2 I'm downloading a song.

3. The director of the film is not satisfied with a young actor. The actor is answering back. What does he say?

2. Word building. 1) What words were these nouns derived from? Guess the meaning of the nouns and underline the suffixes of the nouns.

4. Расставь пропущенные знаки препинания.