DẤU HIỆU 12. “I went to Ninh Binh last year, but I didn’t visit Cuc Phuong National Park ”, said Jane. A. Jane said that she had gone to Ninh Binh the year before, but she hadn’t visited Cuc Phuong National Park. B. Jane said that she went to Ninh Binh the year before, but she hadn’t visited Cuc Phuong National Park. C. Jane said that she had gone to Ninh Binh the year after, but she hadn’t visited Cuc Phuong National Park. D. Jane said that she had gone to Ninh Binh the year before, but she hadn’t visit Cuc Phuong National Park. 13.  When I was a child, I often thought anyone 40 was old. A. When I was a child, I used to think anyone 40 was old. B. When I was a child, was used to thinking anyone 40 was old. C. When I was a child, used to thinking anyone 40 was old. D. When I was a child, was used to think anyone 40 was old.