For the past -
How much did that cost?
How much did you pay?
For the present -
How much is this?
What is the price of this item?
What is the cost of this item?
June 30, 2019
0
1
How much that cost? (No)
What did that cost?
What was the cost?
How much was that?
The last 3 don’t have identical meanings but they are properly formed questions.
July 1, 2019
0
0
How much did that cost? - correct
How much that cost? - incorrect
July 1, 2019
0
0
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