Your nickname must contain only latin symbols (a-z,A-Z),numbers (0-9),symbols - and _.long

Your nickname must contain only latin symbols (a-z,A-Z),numbers (0-9),symbols - and _.long Your nickname can only contain letters and numbers Is your character only famous under a nickname? 关于penpalworld的nickname的问题.输入后总是出现Your nickname can only contain letters and numbers you must c your shoesc什么? the same as 的用法比如我想跟我同学在MSN上说：“你的网名必须跟你的姓名一样.”Your nickname must be the same as your first & last name.这样写对不对?我怎么感觉不太对?1楼你说用should，只是比must委婉 我的世界联机显示Your nickname is too short or too long 怎么办? We must C----------- your food well before you swallow it ( )your homework ____by yourselves.A.must be do B.must do C.must be does D.do( )your homework ____by yourselves.A.must be do B.must do C.must be done D.do You must take your classroom （ ） ...You must take your classroom （ ）A clean B cleaned C cleanning D cleans you must keep your 很简单的英译汉Nancy is your first name or do you have any nickname?怎么回答.要准确! Your must remember_____.a.what your teacher said b.what did your teacher say还有两个选项：c.your teacher said what d.what has your teacher said You must do your homework_______after school.A.first B.next C.finally D.then you must finish your homework before____to bedA.go B.goes C.going选什么?为什么? You must c your answers when you finish them.中间的空怎么填啊? You must help your parents____ the housework after schoolA about B with C of D doing You must c your answers when you finish then.中间空着的应该填什么?