Tell them not to make _______ noise.

• the
• an
• a
• no article
Correct Option: C  [ a ]

Remark:

Let's watch _______ movie; I mean 'Pather Panchali'.

• a
• an
• the
• no article is needed.
Correct Option: C  [ the ]

Remark: "The" used as movie name is specified.(the definite article)

We have bought _________ LCD television set.

• a
• an
• the
• zero article
Correct Option: B  [ an ]

Remark:

He wrote ________ one-act play.

• the
• an
• a
• no article
Correct Option: C  [ a ]

Remark: "a" is used with "one-act" ( Vowel word with a consonant sound.)
similar: a university, a one-man army, a union

Nelson was __________ boy without fear.

• the
• a
• an
• none of these
Correct Option: B  [ a ]

Remark: Using "a" suggests that Nelson was just one of many boys without fear.