Is this the reason _____ at the meeting for his carelessness in his work?

Is this school ______you have studied infor four years

Some fruits are so easily harvested in this area thatthey are never of great _____

Believe it or not，my sister and I are twins—Oh，you must have had the case________you were taken for your sister

____ find a better job, she planned to learn a second foreign language.