Copper is __________ Useful metal. (appropriate article)

• a
• an
• the
• Zero article
Correct Option: A  [ a ]

Remark: "a" is correct because "useful" starts with a consonant sound. "An" is used before words that start with vowel sounds.

All of us admire _______ beauty.

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

Remark:

My mother bought me ______ new Pair of shoes.

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

Remark: "A" is the indefinite article used before singular countable nouns that start with a consonant sound.

He died without ________ heir.

• the
• an
• a
• no 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

A book is like _________ mirror.

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

Remark:

It's _________ most expensive hotel in town.

• a
• the
• one
• None of these
Correct Option: B  [ the ]

Remark:

Should we look down upon _________ poor?

• the
• an
• a
• No article required
Correct Option: A  [ the ]

Remark:

Iron is _______ useful metal.

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

Remark:

There is _______ great deal of confusion here.

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

Remark: