Do you mind my opening the window for awhile—_______

It was with great joy ________ he went to Shanghai to work as a volunteer there.

The education system rather than the teachers ________ for the overburden on the students. [ ]

Tom, I regret ________ you that you didn’t pass your final examination.— Oh, my God! I regret ________ too much time which should be used to study.[ ]

－How long doesit take us to go to your school from here－It takes us houror more to go to my school by bus.