Choose the correct word or phrase that completes the sentence correctly.He cannot meet the classes today because he ____.

is ill
have illness
had been sick
will be ill

The correct answer is A. is ill.

The other options are incorrect because:

  • B. have illness is grammatically incorrect. The correct verb form is “to be ill”.
  • C. had been sick is in the past perfect tense, which is used to talk about something that happened before another event in the past. In this sentence, we are talking about something that is happening now, so the past perfect tense is not appropriate.
  • D. will be ill is in the future tense, which is used to talk about something that will happen in the future. In this sentence, we are talking about something that is happening now, so the future tense is not appropriate.

The sentence “He cannot meet the classes today because he is ill” means that the person is currently sick and cannot attend class.