How could you do this.是委婉,还是过去?

How could you do this.是委婉,还是过去? how often do you do this things是对还是错 是How could this happen?还是What could this happen?为什么呢? ——How do you like this book?——It is______ as you could ever 是how you spell 还是 how do you spell 是“what do you think”还是“how do you think”? Could you tell me ___ to do next,please?填what还是how? how do you do 后是感叹号还是问号? how do you do是疑问句还是感叹句?怎么回答? How are you today?的同义句是How do you do?还是How do you feel today [英语]是How are you going to do that还是How are you going to do? how do you find 还是