We ____ the museum because it was closed.
- A. didn't visit(correct answer)
- B. didn't visited
- C. not visited
- D. don't visit
Why: Didn't + base verb: didn't visit. Don't is for the present.
A212 questions · Elementary · Tenses and Time
Make the past negative with didn't, ask with Did and What did, give short answers, and choose between did and was or were. Short questions with the answer and the reason.

1.We ____ the museum because it was closed.
Why: Didn't + base verb: didn't visit. Don't is for the present.
2.____ Hoa send you the photos last night?
Why: Last night is past and send is an action verb. Start with Did.
3.What ____ you have for dinner last night?
Why: What + did + you + base verb. Do is for the present.
How to make past simple negatives with didn't, questions with Did and question words, short answers like Yes, I did, and when to use was/were instead.
Who told you? or Who did you tell? Learn when a question with who, what or which drops do, does and did, with examples, common mistakes and a quick check.
Didn't is the past simple negative: subject + didn't + base verb. Why it's "didn't go", not "didn't went", and why was and were don't take didn't.