B.Parents who help with the clean-up don't need to pay for the course. C.Both Tykes and BoysE&F have classes on Sunday. D.Tykes and PeeWees have the same charging standard. 答案:D细节理解题。根据Costs部分中的"The cost is $70 per month for Tykes and PeeWees"可知,Tykes和PeeWees的...