İf u want to keep the sentence short,yes you can say that but if you want to be more polite you can also say: Could you please close the door,or window etc.
To use the modal verb 'must' when you talk about the past.
When do you use mich vs mir? Also why is it "Mir ist kalt" instead of "Ich bin kalt"?
Generating questions for collocations
What does "before it fades to black" mean?
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