PMS MCQs

'Yet' in a negative sentence commonly refers to an unfinished action up to now.
The present perfect is the natural tense.

The action is happening at the moment of speaking.
The present continuous tense is therefore required.

The waiting continued for a period before a past event.
The past perfect continuous emphasizes the duration.

The sentence refers to life experience without a finished past time.
The present perfect connects the experience to the present.

Future time clauses after 'as soon as' normally use the simple present.
The future meaning is carried by the main clause.

The train's departure occurred before another completed past action.
The earlier past event takes the past perfect.

The main action will happen in the future after another future-completed action.
The main clause therefore uses 'will call.'

With 'either...or,' agreement is normally with the nearer subject.
The nearer subject 'brother' is singular, so 'is' is correct.

A measurement considered as one total amount takes a singular verb.
The entire distance is treated as one unit.

The subject is 'One,' not 'books.'
Because 'One' is singular, the verb must be 'is.'

In a 'there is/are' construction, the verb agrees with the following real subject.
'Reasons' is plural, so 'are' is correct.

The head noun of the subject is 'quality,' which is singular.
The plural noun in the prepositional phrase does not control agreement.