40 grams of meat per day is ______ people should consume in order to stay fit.

In yesterday’s football game, our school football players performed well – they were in____ of the ball most of the time

He told me that he had two girl-friends, neither of _______ knew anything about the other.

ucation is a sensitive area for someparents, and thus it should remain _________.

Do you have a China dream— Of course. I want to study abroad. I’m sure to __________ my dream.