Choose the word that fills the blank.
You ______ have bought so much milk; we already had two packets.

must notCorrect answerYour answercould notCorrect answerYour answerneed notCorrect answerYour answershouldCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

"Need not have" with a past participle means something was done but was not necessary: you need not have bought it.

Worth noting

"Must not have bought" is a guess that it was not bought. "Should have bought" would say buying it was right.

Ten questions from Articles, prepositions and modals, at your own pace.

Ten questions from Articles, prepositions and modals, at your own pace.

Choose the word that fills the blank.You ______ have bought so much milk; we already had two packets.