如何做這句子

1)when 和while 的分別？

We usually use while to say that two longer actions or situations go/went of at the same time.
e.g.While you were reading the paper, I was working.

We prefer when to refer to ages and periods of life.
e.g. When I was a child, we lived in London.

(2)如何使用when 和while？

(a)two acting, two continual one (two progressive forms)
e.g. While you are reading the newspaper, I am painting.

(b) background situation
When/While I was walking down the street, I saw Peter drive a Volvo passing by.

(c)a period time (usually progressive form)using while/when
While I was having dinner, Mom was watching TV.

(d)two
simple tense while/when either can be used, yet if what we talk about
is about the age or kinda life step, usually using 'when'
I had lunch in the restaurant while/when she studied in the library.
Mary's mother died when she was 12.
Mary married a cute guy when she was in London.

was standing




的士死火後, 應不應 用打火機來放氣 !!?

其實你也沒錯，只是老師照住個答案改，就話你錯。。。

但也示乎佢有冇比中文解釋你~ 因為用 "stood" 和 "standing up" 的解釋係唔同。。。

While I was sitting down, he stood up. 解:當我坐著的時侯，他就站了起來。 (示意: 你坐下之後，他才站起來。。。 在這種情況下 - 是有些少不禮貌，可能那個人很不喜歡你或有突發事件他才會站起來。)

While I was sitting down, he was standing up. 解:當我坐著的時侯，他是站著的。 (示意: 是同時發生的事件 - 也不是因為你坐下來，他才站著。)

兩個clause都要用present continus tense

其實你呀仔填ge答案個意思係岩ge..但係因為如果用while的話,要兩個動詞都變成 past continuous tense,如果係一個past continuous tense,一個past的話,就唔可以用 while,要轉用when.所以你呀仔個老師係岩ge,係應該填was standing,因為兩個動作係同時進行!!緊!!.

因為 (while) 一定兩個clause都要用present continus tense

It is because it uses while,while means both are for long time.If the time is long, we should use past continous tense.because stand can be a very long time.