The cops were on their toes throughout the day.

• eager
• alert
• harried
• quick
Correct Option: B  [ alert ]

Remark:

I raked my brain to solve this difficult problem.

• I consulted several people
• I subjected my mind to hard thinking
• I read number of books
• I brainwashed several experts
Correct Option: B  [ I subjected my mind to hard thinking ]

Remark: raked my brain: to think very hard

The old father brought home the moral of unity by asking each of his sons to break the bundle of sticks.

• emphasised
• voiced
• declared
• suggested
Correct Option: A  [ emphasised ]

Remark:

Replace the underlined portion with an idiom from the list below:
They finally agreed on the business deal.

• let the cat out of the bag
• see eye to eye
• to feel under the weather
• to cut a corner
Correct Option: B  [ see eye to eye ]

Remark: The phrase "See Eye to Eye" is used when you view something in the same way as others do, or that you agree with someone about something.

He is a dark horse.

• silent
• secretive
• dangerous
• possessing a secret ability.
Correct Option: D  [ possessing a secret ability. ]

Remark:

The MP from our constituency is fond of blowing his own trumpet whenever he gets a chance.

• parading his own good deeds
• speaking too loudly
• looking after his own interest
• making long speeches
Correct Option: A  [ parading his own good deeds ]

Remark:

To bite the dust

• eat voraciously
• have nothing to eat
• eat roots
• to fail
Correct Option: D  [ to fail ]

Remark:

The idiomatic expression "pull yourself together".

• drag oneself
• help me
• get angry
• calm down by oneself
Correct Option: D  [ calm down by oneself ]

Remark:

On the issue of marriage, Sarita put her foot down.

• stood up
• was firm
• got down
• walked fast
Correct Option: B  [ was firm ]

Remark:

Seema is a little hard of hearing.

• inaudible
• deaf
• disinterested
• insensitive
Correct Option: B  [ deaf ]

Remark: "Hard of hearing" refers to people with hearing loss ranging from mild to severe.