17. Change the sentences according to the example.
Example: He often plays in the yard. He is playing in the yard now.

1. They often go to the country. They are going to the country now.
2. She always helps her mother. She is helping her mother now. 3. We go to school every morning. We are going to school now.
4. They often play in the yard. They are playing in the yard now.
5. Tom doesn’t play basketball. Tom isn’t playing basketball now.

18. Fill in the proper tense form.

1. David is playing in the yard now.
2. We usually  have dinner at home.
3. Kate waters the flowers every day.
4. Children are singing now.
5. Mike is usually does his homework in the evening.