In a sense, no country, big or small, should object to the trend of peace and development, ______ creating trouble to others

Without his illness, our English teacher _______ to the zoo with us last Sunday.

Children of divorced parents ______ have difficulty in forming stable relationships themselves.

31—What’s the matter with Christine—A letter from her parents inCalifornia________an attack of homesickness

you should have taken me to the football match this morning.—I had intended to, but I couldn’t spare any time, I _____ a report.