1. They weren't in the leisure center yesterday evening

2. My mum was angry because my room was untidy

3. Could she ride a bike when she was six?

4. We weren't in New York last month

5. The weather wasn't very good yesterday

6. Ada was good at Maths when he was a child

7. Sam was scared when she saw the dangerous dog

8. When Picasso was 16, he left school

9. Dad couldn't help me with my homework because he was busy

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Công thức Thì quá khứ đơn (Past simple):

- CÂU KHẲNG ĐỊNH

+ Động từ tobe 

Cấu trúc: S + was/ were + N/Adj

+ Động từ thường

Cấu trúc:  S + V-ed/c2

- CÂU PHỦ ĐỊNH

+ Động từ tobe 

Cấu trúc: S + was/were not + N/Adj

+ Động từ thường

Cấu trúc: S + did not + V (nguyên thể)

- CÂU NGHI VẤN

+ Động từ tobe 

Cấu trúc: Q: Was/Were+ S + N/Adj?

A: Yes, S + was/were.

No, S + wasn’t/weren’t

+ Động từ thường

Cấu trúc: Q: Did + S + V(nguyên thể)?

A: Yes, S + did.

No, S + didn’t