To murder in "cold blood", it means to murder:

• coolly
• unfeelingly
• thoughtlessly
• deliberately
Correct Option: B  [ unfeelingly ]

Remark:

On hearing the news of the kidnapping, she became afraid of her own shadow.

• cold and distant
• afraid of her own safety
• very nervous and easily frightened
• afraid of being alone
Correct Option: C  [ very nervous and easily frightened ]

Remark:

He was out of spirits for a few days after his defeat.

• gloomy
• sober
• lifeless
• uninvolved
Correct Option: A  [ gloomy ]

Remark:

The meeting ended in fiasco.

• succeeded
• in confusion
• in complete failure
• in acrimonious debate
Correct Option: C  [ in complete failure ]

Remark:

Take Cat out of the bag

• to rebuke
• to defame someone
• to reveal a secret
• to sell a pet
Correct Option: C  [ to reveal a secret ]

Remark:

I cannot deal with a queer fish like him.

• having too much critical habit
• dishonest person
• very mean person
• eccentric and peculiar person
Correct Option: D  [ eccentric and peculiar person ]

Remark: a queer fish: a person whose behaviour is strange or unusual.

"Don't try to throw dust into my eyes. You will not succeed."

• to protect my eyes
• blind me with dust
• to mislead or confuse me
• to blind me with dust
Correct Option: C  [ to mislead or confuse me ]

Remark: throw dust into my eyes: to mislead or deceive someone.

Fly off the Handle

• reprimand someone severely
• lose one's temper suddenly
• deliver a sermon
• break down of bike
Correct Option: B  [ lose one's temper suddenly ]

Remark:

"Cart off" means:

• discard
• disregard
• dejected
• None of these.
Correct Option: A  [ discard ]

Remark: "cart off" means to take someone or something away, often forcefully or abruptly.

When one is "airing dirty linen in public", the person is:

• discussing private affairs in public
• hanging out clothes in the open to dry
• standing up and fighting
• complaining
Correct Option: A  [ discussing private affairs in public ]

Remark: "airing dirty linen in public": discussing or arguing about unpleasant or private things in front of other people.