this is a （ ) problem

词性判断,逐一写出每个单词的词性1. The weakness of this diet is that it has too much fat and sugar；its strength is that it has plenty of energy-giving food. 2. He has been in debt for a long time.How to earn his living is a big proble 英语翻译If I am a volunteer The Olympic Games will be held this year.I am so excited and I think the games will be interesting and also fascinating.But now,the important is,how should we do with the Olmpics if I am a volunteer?To solve the proble 关于关系代词和关系副词This is the way ____he worked out the problem.This is the way __he used to worked out the proble.分别填什么? 英语翻译The difficulty in object indexing is to determine the identity of an object under arbitrary viewing conditions in the presence of cluttered real-world scenes or occlusions.Local characterization has shown to be well adapted to this proble Is this a book? Yes,this is. This is a man提问( ) is this? This is a love this is a japan This is a this is a This is a book this is a Demo This is a secret This is a story This is a This is a n_____jacket is this a jacket This is a cirde.