Question

Fill in the blank with the most appropriate option.
I think you _________ this work yesterday evening.

• A. should have done
• B. had done
• C. should do
• D. would do

Answer 1

The correct option is A should have done

The auxiliary verb “should” is the past form of shall. It is used to express something that you wish had happened but it didn’t or couldn’t (should + have + past participle). The context refers to an action that should have taken place yesterday evening. Thus, “should have done” in option A is the correct answer.
“Had done” in option B does not concur with the given context as it indicates an action that might have taken place in the past.
“Should do” in option C indicates an action that is expected or is correct. However, the context refers to a time in the past when an action should have taken place. This is incorrect in the given context.
“Would do” in option D is used to express a wish or desire. This is incorrect in the context.
Thus, option A is the correct answer.