My parents always remind me to make sure the electricity is turned off while I am having a bath,which would _____ cause danger, leading to a dreadful consequence.[ ]

Was it because of the heavy snowstorm in Europe _____ the flight had to be put off? [ ]

“Hope for the best and prepare for the worst”is a pro-verb, ________life is beautiful and full of frustrations aswell.[ ]

Will Mr. Black go to the opening ceremony this weekend—No, he has finally decided _____.

There are some differences between American English and British English.—Right. “Autumn” means “________” in American English.