——Recent years have________ rapid changes of my hometown.——Yes, I could hardly recognize it when I arrived yesterday.
Almost every teenager will experience a period in their life _____ they aren’t content with their parents.
Little did the teacher imagine that a student good at maths _____ have failed in the exam.
— I’ve never seen you so rude! — I _____ something I shouldn’t have, but I didn’t mean that.
Tom was sorry to learn that his grandfather _____ for half an hour when he got to the hospital.
Though the number of Japanese army was _____ that of our Eighth Route Army, they lost the battle in that mountainous village.