Ex.8: Make the sentences negative: 1.Helen plays the piano well. - 2. The children like sports a lot. - 3.My friend writes his test-papers well. - Ex.9: Make the sentences interrogative: 1.Helen plays the piano well. - 2.The children like sports a lot. - 3. My friend writes his test-papers well.​

Ex. 8: Make the sentences negative:
1. Helen does not play the piano well.
2. The children do not like sports a lot.
3. My friend does not write his test papers well.

Ex. 9: Make the sentences interrogative:
1. Does Helen play the piano well?
2. Do the children like sports a lot?
3. Does my friend write his test papers well?