What is the student's problems?

What is the student's problems? what are the s( ) to the problems. define what is a student's association What's the mean of exchange student? what problems do college student face today What is the root of the environment problems? 句子翻译 If a student wants to keep healthy,what's is the best w who is the student's best critic What's in the student's lockers? 改为同义句 what nationality is her student?she's german复数形式 who is the student's best critic 怎么翻译 student's 指什么 the 指什么 This is the student's book和 This is the student