Question

The train must ______ reached Delhi by now. ?
a. has
b. had
c. have
d. None of these

Answer 1

The train must have reached Delhi by now

Explanation:

• "Must" is a modal verb. A modal verb is a type of verb that is used to indicate modality – that is: ability, likelihood, request, permission, suggestions, capacity, obligation, advice, or order. Modal verbs  accompany the "base ("infinitive") form" of another verb having "semantic content". Must  as a modal verb means "to express obligation" or "to express strong belief/opinion"
• In the above sentence when we use "must" with "have" it implies expressing an "opinion" about something which is logically "very likely". ( as in the above sentence it refers - its likely the train must have reached Delhi).  Hence, "must" as a modal verb means an "assumption" or to reach a "logical  conclusion" about "something"  which is  quite probable to be true. example, My bike has disappeared; someone must have stolen it.

To know more

His plane must have landed by now (underline modal verb ...

brainly.in/question/21936268

Answer 2

Answer:

Fill in the blanks

Explanation:

In the above question,we need to write the correct answer in the blank space in the sentence.

The train must ______ reached Delhi by now. ?

a. has

b. had

c. have

d. None of these

The correct answer would be

The train must have reached Delhi by now.