Suzy got . . . . . . . . part-time job in . . . . . . . . Italian restaurant.

'A' is used in front of words that start with a consonant sound. 'An' is used in front of words that start with a vowel sound. 'The' is used to refer to something which has already been mentioned and the reader knows about. In the given sentence, the use of indefinite articles is required. The word after first blank starts with consonant sound and the word after second blank starts with vowel sound. Hence, 'A' and 'An' will be put in the blanks respectively.