His father makes a promise to him that he will buy him a computer if he a good score for the entrance examination to college this June.
Every pupil is __________ to be in the classroom at 7 am.
—The athletes won 51 gold medals in the 29th Olympic Games. —We are all __________ their success in the Olympic Games.
The waste can be recycled into new products, which __________ will save natural resources.
Tony __________ the deadline by two hours, but did not inform me __________, which made me angry.
There's a __________ in our office that when it's somebody's birthday, they bring in a cake for us all to share.