Đáp án:

Giải thích các bước giải:

 1,- i didn't go to the movies with my boyfriend last night

    ? did you go to the movies with your boyfriend last night

2, - my mother didn't go to the market yestrday

    ? did your mother go to the market yesterday

3, - mark didn't send me a letter apologizing for being late for his appointment last night

    ? did mark send me a letter apologizing for being late for his appointment last night

4, - i didn't buy a new computer yesterday

    ? did you buy a new computer yesterday

5, - i didn't walk to school

    ? did you walk to school

6, - he didn't give me a bouquet of roses

    ? did he give me a bouquet of roses

7, - karty didn't bake a cake last night

    ? did karty bake a cake last night

8, - my family didn't go to da nang to see the fireworks festival last year

    ? did your family go to da nang to watch the fireworks festival last year

9, - i didn't call him to discuss a new project

    ? did you call him to discuss a new project

10, - she didn't invite me to her birthday party

      ? did she invite you to her birthday party