She has been working here _____ five years.

• A. since
• B. for (Answer)
• C. from
• D. during

Use 'for' with a period of time (five years). Use 'since' with a point of time (since 2019).

The teacher, _____ with the students' progress, gave them extra work.

• A. please
• B. pleasing
• C. pleased (Answer)
• D. pleasure

'Pleased' is the correct past participle used as an adjective here. The teacher felt pleased.

Neither the manager nor the employees _____ happy about the decision.

• A. was
• B. were (Answer)
• C. is
• D. has

With 'neither...nor', the verb agrees with the subject closer to it (employees = plural), so 'were' is correct.

He is the best student _____ has ever studied in this school.

• A. which
• B. whom
• C. who (Answer)
• D. whose

'Who' is used for persons as the subject of a relative clause. 'Whom' is for the object.

The news _____ surprising to everyone in the office.

• A. were
• B. was (Answer)
• C. are
• D. have been

'News' is an uncountable noun and always takes a singular verb.

I would rather _____ at home than go to the party.

• A. stayed
• B. staying
• C. stay (Answer)
• D. to stay

'Would rather' is followed by the bare infinitive (without 'to').

The thief ran away as soon as he _____ the police.

• A. sees
• B. saw (Answer)
• C. has seen
• D. had seen

Both actions happened in the past. 'As soon as' with simple past is used for simultaneous past actions.

You must apologise _____ your rude behaviour.

• A. of
• B. about
• C. for (Answer)
• D. to

'Apologise for' is the correct collocation. You apologise for doing something wrong.

By the time she arrived, the meeting _____.

• A. ended
• B. has ended
• C. had ended (Answer)
• D. was ending

Past perfect ('had ended') is used for an action completed before another past action.

Each of the students _____ asked to submit the assignment.

• A. were
• B. was (Answer)
• C. are
• D. have been

'Each' is always followed by a singular verb.