Student or Learner
1.I lived in France for 2 months "during which time / during which / during" I was in vacation.
2. The world war II, "during which / during which time" many people were killed, ended in 1945.
When do we use "during which" and "during which time" ?
3. He drove the motorbike "at which speed / at a speed which" no one had reached before.
4. She called the doctor, "by which time / by the time when / by the time" they closed the hospital.
There might be more than one correct answer in question 3 and 4, please explain to me in detail.
What does "by which time" mean?
I don't know much about using a preposition together with "which" . Please teach me as precisely as possible.
Last edited by binha10k12; 06-Jul-2016 at 10:10.
Almost all your sentences are incorrect because they do not end with a punctuation mark.
Edit your post to fix those errors. While you're doing that, check the past tense of "drive" for sentence 3.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.