All the three blanks won’t take any article as ‘chemistry’ is the name of a subject, ‘university’ is not specific and ‘present’ refers to time which is uncountable.

Use ‘an’ before words such as “hour” or “honour” which sound like they start with a vowel even if the first letter is a consonant. Also use ‘an’ before letters and numbers which sound like they begin with a vowel, such as “F” or “8”. The word ‘University’ has consonant sound ‘yoo’. Hence, ‘a’ is used.

No article is used before the names of meals. However, if meals are identified with adjectives, they can be used with articles. Here, ‘good’ is the positive degree of the adjective and is used to describe the meal. Therefore, the correct option is: no article; a.

Here, ‘puppy’ is a general class and therefore indefinite article will be used. Word after the blank starts without vowel sound. ‘A’ article will be used.

‘only person’ indicates particularity and therefore ‘the’ article will be used.

The first blank shall take ‘the’ as the sentence talks about a particular task (primary task). The second and third blank won’t take any article as both ‘development’ and ‘poverty’ are not singular countable nouns.

Bible’ is a specific book and ‘Christians’ are a specific group of people. So, ‘the’ article will be used before both. ‘Religious books’ is a general class of things. So, ‘a’ article will be used.