根据句意和汉语注释，写出单词的正确形式。How ____________ (讨人喜欢的) the cat is!
Young people of all ____________ (年龄) like to get there to meet on Sundays.
How many _____________ (成员) are there in the Reading Club?
I think skiing in Harbin is _____________ (有趣的事).
At __________ (周末), we usually go to the Drawing Club.