根据句子意思,用括号中所给汉语提示或英语单词的适当形式填空。在标有题号的横线上，写出空缺处所填单词的正确形式。
⑴The children were (骄傲)that they successfully held the charity show.
⑵What the girl said makes her look even  (丑陋的).
⑶A lot of work needs  (finish) this term.
⑷It is   (know) to all that the sun rises in the east and sets in the west.
⑸Hard work made him an (优秀的) leader in his team.
⑹There is need for  (improve) in your spoken English.
⑺We can do some (volunteer)work for those helpless people.
⑻I have a few good friends (在…之间)my classmates.
⑼It's  (邮递员) duty to deliver letters on time. 
⑽You must collect all  (donate) within two days.