Choose the correct form of the verb to fill the blank.
She was tired because she ______ all day.

worksCorrect answerYour answerhad been workingCorrect answerYour answerhas workedCorrect answerYour answeris workingCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

The work went on for a long time before a past moment (when she was tired), which takes the past perfect continuous: "had been working".

Worth noting

"Has worked" and "is working" are present forms, but "was tired" sets the whole sentence in the past.

Ten questions from Tenses and agreement, at your own pace.

Ten questions from Tenses and agreement, at your own pace.

Choose the correct form of the verb to fill the blank.She was tired because she ______ all day.