There's a __________ in our office that when it's somebody's birthday, they bring in a cake for us all to share.
Look! Some workers are busy building a monument, one______the national hero
Little John hardly got anything in________ for his kind act, ________ made him unhappy.
That hazy(雾霾)weatherhas hit104 citiesin middle-east China lately makes citizens well aware of ______a terrible problem China is faced with.
Seeing the coach nodding ________ to her, the little dancer was no more nervous and went on with her performance.
—Have you got any idea why Mother asks for me? —She wants you to________ your staying up last night.