Please help! passed all tests but one keeps failing. A program to replace all occurrences of numbers with equivalent spellings

Question

Sololearn Coding Challenges

Answer 1

a=input().split()

dic={"0":"zero","1":"one","2":"two","3":"three",'4':'four','5':'five','6':'six','7':'seven','8':'eight','9':'nine','10':'ten'}
for i in range(len(a)):
    if a[i] in dic:
        a[i]=dic[a[i]]
print(' '.join(a))

Answer 2

Thanks.. way simpler than wat i was trying :))

Answer 3

https://www.sololearn.com/coach/64?ref=app

And this is my code:

numbers = {
'0':'zero',
'1':'one',
'2':'two',
'3':'three',
'4':'four',
'5':'five',
'6':'six',
'7':'seven',
'8':'eight',
'9':'nine',
'10':'ten'
}

def phrase(question):
question.lower()
for key in numbers:
if len(key) == 1 and key in question or key == '10':
question = question.replace('{}'.format(key), '{}'.format(numbers.get('{}'.format(key))))

return question

test = input()
print(phrase(test))