yuugata made ni shusseki ka kesseki ka o apuri de okutte kudasai.

direct object particle

Breakdown of yuugata made ni shusseki ka kesseki ka o apuri de okutte kudasai.

• か: question particle
• に: time particle
• で: means particle

Questions & Answers about yuugata made ni shusseki ka kesseki ka o apuri de okutte kudasai.

Why is までに used instead of まで?

• までに = “by (no later than).” It sets a deadline at a point in time.
• まで = “until (up to and including).” It implies something continues up to that point. So 夕方までに送ってください means “Send it by evening.” 夕方まで送ってください would sound like “Keep sending until evening,” which isn’t the intent here.

Why are there two か in 出席か欠席か?

When an A-or-B choice is followed by another particle (here, を), you close the choice with a second か so the whole unit “出席 or 欠席” is treated as one chunk: 出席か欠席かを. Without the second か, を would look like it applies only to 欠席. At the end of a sentence you often see just AかB, but inside a larger sentence “AかBか” is common.

What is を marking here?

It marks the direct object of 送ってください. The thing being sent is the content “出席か欠席か” (“attendance or absence”).

Why アプリで and not アプリに or アプリから?

• で = by means of/via: アプリで送る (“send via the app”).
• に = recipient/destination: 先生にアプリで送ってください (“send it to the teacher via the app”).
• から = source: アプリから送る emphasizes “from within the app.” Here “via the app” is intended, so アプリで is natural.

Is 送ってください the right politeness level? Any alternatives?

送ってください is standard polite. Other options:

• More technical: 送信してください / ご送信ください
• More formal/polite: 送っていただけますか, ご送信いただけますと幸いです
• Different nuance: 連絡してください (“please let me know”), 知らせてください (“please inform me”), 提出してください (“please submit”) depending on context.