Last Monday the teachers and students held a grand ceremony __________ the 80th anniversary of our school.
I have done much of the work. Could you please finish _________ in two days?
Not much impressed ________ the performance, half the audience left before it was over.
It was at the school gate _______ I met an old friend of mine after class.
He ________ an interest in drawing when he was only a child and now he is a famous artist.
Because of the Asian Games in Guangzhou, Lin Dan and Xie Xingfang had to _______ their wedding.