'I'm afraid' and 'because' should be switched each other

[Jetta]

English Error, Elementary Level

ESL/EFL Test #6 "Stop making plans", question 7

I can't coming out this evening I'm afraid because I have too many jobs to do in the house.

(a) can't coming
(b) I'm afraid
(c) to do

English Error, Elementary Level

ESL/EFL Test #6 "Stop making plans", answer 7

I can't come out this evening I'm afraid because I have too many jobs to do in the house.

Correct entry: can't come
The error was: (a) can't coming
_________________________

I think the sentence is not correct:
'I'm afraid' and 'because' should be switched each other.

Jetta

[Pamela]

I'm afraid is a parenthesis and should be separated.

I can't come out this evening, I'm afraid, because I have too many jobs to do in the house.

[Yankee]

I like your first suggestion the best, Pamela.

This is a sentence in which the commas are urgently needed if the word order is to be left as it is.

[Pamela]

Many thanks, Amy!

P.S. I deleted the last sentence.

[Conchita]