一. be doing when ——正在做某事，这时...... I was doing my homework when the bell rang. 我正在写作业，这时候铃声响了。 The students were talking loudly when the teacher came in. 学 …

We use when to ask questions, as a conjunction and to introduce relative clauses. We can use when to ask for information about what time something happens: When did you leave? When …

2011年11月14日 · At best, "for" is not necessary in either sentence. Some would say it's wrong. That's certainly true for sentence #1. But what about #2? When do you want to schedule the …

Synonyms for WHEN: while, whilst, as, so long as, once, immediately, instantly, as soon as; Antonyms of WHEN: after, since, directly

when to do和 when doing的区别如下所示。 1. 释义区别： - "When to do"表示某件事情应该在何时完成或进行。 - "When doing"表示在进行某件事情的同时发生的其他情况或事件。 - When to …

We use when to refer to the time of a future situation or condition that we are certain of: … In informal language, we often use where, when or why to introduce defining relative clauses …

You can use "for when" when you are making a statement about something happening in the future. For example: I wrote down the address for when we need to return the rental car. For …

2023年10月26日 · In summary, the preposition “to” generally indicates direction or movement, while “for” generally indicates purpose or intended recipient. I went to the store to buy milk. It …

We use when to refer to the time of a future situation or condition that we are certain of: … In informal language, we often use where, when or why to introduce defining relative clauses …

2024年8月30日 · Our clocks will fall back at 2 a.m. on Sunday, Nov. 3, 2024. Will we gain or lose an hour when DST ends? When daylight saving time ends, we will set our clocks back an …