—What about the student in your class, Mr. Wang?—The doctor said that ________ sleep caused him poor memory and poor concentration.

_____ with the size of the whole earth, the biggest ocean does not seem big at all.

The witnesses_________ by the police just now described the fight quite differently.

It's almost common for a video game nowadays to have multiple endings ________ the players' choices during gameplay.

We don’t allow _______in the office．But you are allowed _____ in the rest room．