I) Supply the correct tense form of the verbs in brackets. Then change into negative and interrogative forms.
11. They (practice) their music lesson at 7 o' clock last night.
12. Thu (look) after her little brother next Sunday.
13. This book (just publish) by Kim Dong publisher.
14. The kids (sleep) when the bell rang.
15. She (eat) a lot of fruit yesterday.
16. Kim (tell) us some fairy tales tonight.
17. The house (destroy) by the horrible storm last week.
18. Some people (drink) coffee every day.
19. The students in grade 9 (have) their final test in May.
20. The boys (swim) across the river in a competition last Saturday.