past progressive v.s. past perfect progressive
I need your explanations. Thanks!
1a. I was studying when they came.
1b. I had been studying for two hours when before they came.
They (1a + 1b) have the same meaning, don't they?
The difference is the time signal (b): for two hours (emphazing the length of time).
2. I found the following prepositions in some articles:
in a university
at a university
at the Oxford University (certain university)
Are those correct? If yes, what is the difference between in a university and
at a university? Can we omit a to refer to any university in general?
Last edited by sio; 29-Dec-2008 at 06:40.
By newtothis in forum Ask a Teacher
Last Post: 18-Aug-2008, 02:53
By venkatasu in forum Ask a Teacher
Last Post: 09-May-2008, 13:18
By HaraKiriBlade in forum Editing & Writing Topics
Last Post: 03-Apr-2008, 02:41
By shun in forum Linguistics
Last Post: 18-Sep-2006, 03:45
By bayan said in forum Ask a Teacher
Last Post: 01-Aug-2006, 11:23
Search Engine Optimization by vBSEO