I) Supply the correct tense form of the verbs in brackets,.Then change into negative and interrogative forms.
21. They (talk) to their teacher about the next trip.
22. Tam (award) a silver cup in a tournament two weeks ago
23. The girls (sew) some clothes for their dolls now.
24. Women (have) to do all the housework long ago.
25. Their parents (go) out for dinner last night.
26. My grandfather (live) in HCM city for ten years.
27. Lan (borrow) some books from the library since Monday
28. They (leave) HaNoi for HCM city yesterday.
29. Farmers often (harvest) their crops in August.
30. Uyen (take) a bus to school every day