Sir, our list of grievances here ________ a long one.

• are
• were
• is
• was
Correct Option: C  [ is ]

Remark: "list" is a singular noun, and when referring to a singular entity, the verb should also be singular.

The boss brought matters to a head by forcing him to work more.

• made him happy
• created a lot of unhappiness
• created an atmosphere of confrontation
• brought matters to a decisive
Correct Option: C  [ created an atmosphere of confrontation ]

Remark:

Good sleep is necessary ___________ good health.

• of
• for
• at
• from
Correct Option: B  [ for ]

Remark:

Those persons who are ready to sail close to the wind can be successful in life.

• to take risk
• to manage the situation
• to work hard
• to be regular
Correct Option: A  [ to take risk ]

Remark:

Each of the students _______ given a task to complete.

• were
• was
• have
• have been
Correct Option: B  [ was ]

Remark: If a subject is modified by the words "each" or "every" that subject is singular and will take a singular verb.

_________ Indians sent a space craft to the Mars.

• a
• an
• the
• none
Correct Option: C  [ the ]

Remark:

His promotion is on the cards.

• due
• evident
• certain
• probable
Correct Option: C  [ certain ]

Remark:

Ram made the most ________ his resources.

• at
• of
• from
• with
Correct Option: B  [ of ]

Remark:

Everyone in this world is accountable to God ________ his actions.

• about
• for
• to
• over
Correct Option: B  [ for ]

Remark:

He succeeded by dint _________ his hard labour.

• by
• for
• of
• at
Correct Option: C  [ of ]

Remark: