A."I wonder what would be their reaction"<br/>B."I wonder what their reaction would be"<br/><br/>A."I wonder why didn't they come"<br/>B."I wonder why they didn't come"<br/><br/>A."I wonder how much does the shoes cost"<br/>B."I wonder how much the shoes cost"<br/><br/>A."I wonder how will they celebrate it"<br/>B."I wonder how they will celebrate it"<br/><br/>I'm always confused if the verb should be placed before or after the subject when the sentence involves "I wonder + why, how, what, which, etc.".<br/><br/>Thank you