Ex 2 :
1 weren't / were
2 was / wasn't
3 was
4 were
5 wasn't
6 was
7 was / wasn't
8 were / were
9 were / weren't
10 was / was
* thì quá khứ đơn động từ tobe : S + tobe + V
- I / he/she/it + was
- we /you /they + were
Ex 3:
1. she wasn't last night
2. I wasn't in New York last month
3. They weren't at Anna's house yesterday
4. she wasn't with me yesterday
5. Tom wasn't at my house last Monday
~ GOOD LUCK ~