In the question below choose the word(s) or phrase(s) which best fills the gap(s):
Student: Excuse me sir, must we complete the assignment before lunch? Teacher: No you ....
needn't
mustn't
can't
shouldn't
Explanation
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Discussions (41)
The answer is not correct. The rule of structural tags says if must or should or ought to is used in a sense that means necessary, the statement or question that follows will be need or needn't.
Thanks answer here should be needn't. Here's the explanation
Must sometimes means 'necessary'
In questions, do not reply with must but with need E.g
A. Must you shout when making a phone call?
And: No, I needn't ( not, I mustn't)
Examples of Question Tags
His father is a dentist, isn’t he?
She likes playing tennis, doesn’t she?
He has got a nice car, hasn’t he?
Sophia didn’t go to school yesterday, did she?
You haven’t had breakfast yet, have you?
You had been to London before, hadn’t you?
She will come back tomorrow, won’t she?
John can make his own decision, can’t he?
They couldn’t come to the party, could they?
I should see a doctor, shouldn’t I?
You must call him, mustn’t you?
She wouldn’t meet with Daniel, would she?
"Needn't" is used to indicate that something is not necessary.
"Mustn't" means that something is not allowed or prohibited, which doesn't fit in this context.
Since the teacher is saying that completing the assignment before lunch is not required, "needn't" is the better choice.
The selected answer is wrong:
the answer is neednt
REF: check the invisible teacher
What is the difference between mustn't and shouldn't?
Mustn't = something bad will happen if you do. Shouldn't = like mustn't but the stakes are lower. Couldn't = Used in place of can't when talking about the past or a hypothetical
Option A, 'needn't' is correct.
It is a rule of English that when 'must' is used in the place that means necessary, needn't must be use for example, 'must we come to shop tomorrow?' No, you needn't. Therefore option A is the correct answer to the question.
the answer is *mustn't* because since the question is a positive question *must* then negative answer will follow so the answer should be negative must not
