Образуйте от данных предложений вопросительную и отрицательную формы.
1: my sister is playing the piano now.
2: the teacher is explaining the rule.
3: we are learning the new words.
4: ann is standining at the window.
5: we are going to the park.
6: john is taking a piece of chalk and writing a sentence on the bleckboard.
7: i am doing my homework.
8: jane is speaking on the telephone.
9: she is cooking supper.

вопросительную

1: Is my sister playing the piano now?

2: Is the teacher explaining the rule?

3: Are we learning the new words?

4: Is Ann standining at the window?

5: Are we going to the park?

6: Is John taking a piece of chalk and writing a sentence on the bleckboard?

7: Am I doing my homework?

8: Is Jane speaking on the telephone?

9: Is she cooking supper?

отрицательную

1: My sister is not playing the piano now.

2: The teacher is not explaining the rule.

3: We are not learning the new words.

4: Ann is not standining at the window.

5: We are not going to the park.

6: John is not taking a piece of chalk and writing a sentence on the bleckboard.

7: I am not doing my homework.

8: Jane is not speaking on the telephone.

9: She is not cooking supper.

1: My sister is playing the piano now.

Is my sister playing the piano now?

My sister isn`t playing the piano now.

2:The teacher is explaining the rule.

Is the teacher explaining the rule?

The teacher isn`t explaining the rule.

3:We are learning the new words.

Are we learning the new words?

We aren`t learning the new words.

4:Ann is standing at the window.

Is Ann standing at the window?

Ann isn`t standing at the window.

5:We are going to the park.

Are we going to the park?

We aren`t going to the park.

6:John is taking a piece of chalk and writing a sentence on the blackboard.

Is John taking a piece of chalk and writing a sentence on the blackboard?

John isn`t taking a piece of chalk and writing a sentence on the blackboard.

7:I am doing my homework.

Am I doing my homework?

I`m not doing my homework.

8:Jane is speaking on the telephone.

Is Jane speaking on the telephone?

Jane isn`t speaking on the telephone.

9:She is cooking supper.

Is she cooking supper?

She isn`t cooking supper.

Объяснение: