Question

Fill an appropriate auxiliary verb on the blank:

I'm sorry I couldn't come yesterday. I _________ work late.

• A. has to
• B. have to
• C. had to
• D. have

Answer 1

The correct option is C had to

The option C is correct. The sentence is about past tense which speaks of the necessity or requirement. 'Had' is the verb used for necessity or requirement in the past tense. Thus 'Had to' option is correct. Option A, B and D are not feasible since they are used with present tense.