Răspuns :
1) i did run fast to win the marathon
2my brother does use a towel when he goes to the gym for hygienic reasons
3)we did talk during the exam
4)my father did play guitar when he was 12 but now he doesnt
5)you must chnge your shirt its dirty
6)we must wear uniforms at work
7)will you help me please
8)you shouldnt talk to her she isnt honest with you
9)you shouldnt mix black and white chlotes in the washing machine
10)my sister didnt help our mother shes tired
11) can you help me with these heavy bags please
12)we go to the 11th floor we dont take the lift
13)you mustnt copy in exams
14)my cousin does play basketball
15)my grandmother doesnt eat sugar shes diabetic
16)you shouldnt park here it is not allowed
17)i cant swim fast anymore
18) my aunt does write beautiful tales for children shes a famous writer
19) didnt i close the door its cold