Mark was a student at this university from 1999 to 2003, _____ he studied very hard and was made Chairman of the Students’ Union.A during which time B for which time C during whose timeD by that time
—Have you heard that eleven people were killed on the spot in the highway traffic accident? —Yes, whatshock it is to hear news.
They were kept waiting in the snow for a couple of hours,________.
—How do you like working here? —_______To be honest,I miss my former colleagues.
As we all know, he has regretted wasting the precious time when he studied hard playing computer games at school.
--- Would you please explain to me about the difference between the two words? --- I’m sorry, but that’s I’m puzzled about.