英语的选句填空

英语的选句填空
One afternoon,David is walking his dog,Karl,in the park near his house._______
David is a little angry because Karl runs away.But he has to look for him._____David walks and walks .Three hours passes._______"Mum may be worried about me,"he thinks."_______"
Then he hears a voice,"________he is at my house,playing with my cat,Mimi."It is one of David's neighbors,Mrs Wilson.
A.Hi,David.Are you looking for Karl?
B.Karl sees a black cat under a big tree and runs after it.
C.Karl is walking in the park
D.When will I walk the dog next week?
E.But where is Karl now?
F.It is getting dark ,and he feels very tired
G.There are so many roads in the park that David doesn't know which way Karl takes