One who helps people by giving them money or other aid.

• benefactor
• beneficiary
• tycoon
• patriot
Correct Option: A  [ benefactor ]

Remark:

My friend conceals nothing from me.

• keeps back
• do way with
• give in
• welcome
Correct Option: A  [ keeps back ]

Remark: "keep back": refuse, hide, retain.

The horse and the coach ________ arrived.

• have
• have been
• would
• has
Correct Option: A  [ have ]

Remark: When two singular nouns joined by "and" refer to the same person or thing, the verb is singular.
But here article "the" used twice before each noun to indicate two different subjects, thus "have" used.

Expeditiously (Find Synonym)

• Rudely
• Gently
• Meekly
• Quickly
Correct Option: D  [ Quickly ]

Remark:

Tranquil (Find Antonym)

• Perpetual
• Temporal
• Unruffled
• Disturbed
Correct Option: D  [ Disturbed ]

Remark:

Her supporters began to _________ and she was left alone.

• fall over
• fall away
• fall off
• fall on
Correct Option: B  [ fall away ]

Remark: "fall away": To stop supporting or interacting with someone.

A narrow piece of land connecting two large masses of land

• isthmus
• continent
• gulf
• peninsula
Correct Option: A  [ isthmus ]

Remark: