根据所给汉语注释, 在相应的横线上写出空缺处各单词的正确形式.( 每空只写一词 )
The class __________________(由…组成)of 56 students.
_______________(祝贺)to you on your success!
He gave a small _______________(描述)of what he had seen.
He _____________(参加) the party in the name of his father.
The new teacher made a good ____________(印象)on the students.
We must stop the _____________(污染) of our rivers.
Mixed race __________ (婚姻) were not permitted by law in the united states.
We are waiting for the manager’s __________ (到达).
The _______________(压力)of the water can turn this wheel.
The little girl walked       (自信地）onto the stage, ready for her first speech.