I still remember ____ it was, he told me, ____ I could solve this kind of problems.
The room, although_________ to be kept locked, was often left open.
-----I am sorry for having been so rude to you. ---------That’s OK. I am sure you didn’t___________.
This book is said to be a special one, which __________many events not found in other history books.
Only when I read this story for a second time _________to appreciate its beauty.
I don’t think she’ll be upset, but I’II see her in case______________.