It is necessary for our next generation to understand the importance of the legal requirements of playing and singing the national anthem(国歌).
A.preserving B.observing C.deserving D.reserving
A lot of dust has on the farm machines.
A.brought up B.taken up C.built up D.picked up
My boyfriend and my best friend had a quarrel this significant occasion, and unfortunately I found myself caught .
A.in; between B.in; in between C.on; between D.on; in between
All approaches you thought the problem are very reasonable.
A.of solving B.to solve C.of to solving D.to solving
The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
A.which B.when C.as D.where
— What do you think made Mary so excited?
— the annular solar eclipse(日环食).
A.As she watched B.Watched
C.Watching D.Because of watching
