The Ice Bucket Challenge is a fund raising game, and it aims to raise ______ of amyotrophic lateral sclerosis ( ALS 肌萎缩性脊髓侧索硬化症).
Without facts, we cannot form a worthwhile opinion for we need to have a factual knowledge ________ our thinking.
Shangri-la, which is _______ happy home for the local people, is also ________ home to many birds and animals.
--- Hi, Timmy. I’m going to Kitty’s party. --- ________.
The number of people invited ____ fifty, but a number of them ___ absent for different reason.
In order to get good marks, he has changed his attitude ______ study.