1. They have been in London

dẫn chứng dòng 1 đoạn 1

2. They were surprised at the crowds everywhere

dẫn chứng dòng 1 đoạn 1

3. They decided to travel on the tube railway

dẫn chứng dòng 1, 2 đoạn 1

4. They went to Hype Park and walked along on the grass to Kensington Gardens in bright autumn sunshine.

dẫn chứng dòng 1, 2 đoạn 2

5. It's in the autumn

dẫn chứng dòng 3 đoạn 2

6. They may live in London

dẫn chứng dòng 1 và dòng cuối

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`1.`

Đáp án `:` The children have been in London
`2.`

Đáp án `:` What surprised them was the crowded everywhere

`3.`

Đáp án `:` The decide to travel on the tube railway

`4.`

Đáp án `:`One day, they went to Hybe Park and walked along the grass Kensington Gardens in bright autumn sunshine

`5.`

Đáp án `:` They go there in bright autumn sunshine

`6.`

Đáp án `:` think the two children cam to London from England