is

(a)  

am

(a)  

play

(a)  

jump

(a)  

see

(a)  

are

(a)  

race

(a)  

pump

(a)  

stop

(a)  

slow

(a)  

stop

(a)  

climb

(a)  

run

(a)  

have

(a)  

is

(a)  

comes

(a)  

climb

(a)  

sit

(a)  

push

(a)  

go

(a)  

laugh

(a)  

is

(a)  

ring

(a)  

get

(a)  

line

(a)  

wave

(a)  

is

(a)  

Rewrite the story using past tense verbs that you had just changed.