Please help them do some housrwork是什么时态请各位马上回答

Please help them to do some housework中them为什么不是they Please help them to do some housework中them为什么不是they Please help them do some housrwork是什么时态请各位马上回答 help :please do this passagethanks! I want to do s_____to help them. help sb.do sth.可不可以说成 help sb.to do sth.please help me! please not help me还是please donhelp meplease not do something还是please don do something We must do our ____ to help them 填什么 You must do everthing you can help them 改错 Help please help,please Please help we do this.哪里错了 please please help me They need help ,so we should do s____ to help them No one know how to do to help them.同义句No one konw ____ ____ ____ help them. Lucy and Lily,please help ______to some beef.Ayou Byourself C them D yourselves We'll be_____to help them when they are in trouble.(please) Please help them their Eglish.to in with for用哪一个