"the problem puzzled me" puzzle本身就是动词,为什么后面还要加d

不是时态问题

The problem about "as well as THe problem about "as well as"? "PU"是什么? 请问"He is awake to the serious problem."与"He awakes to the serious problem."哪个是正确的？ Noting the "medical/psychological" nature of problem gambling behavior ,the letter said that...翻译 Who can sovle the problem!!!!!!!!!!!! help to solve the problem? The problem of studying abroad address the problem什么意思？ "problem"什么意思?