You must's come across the street(祈使句)

You must's come across the street(祈使句) you must come to dinner You must come here .改成祈使句 You must come here.变成祈使句 变成祁使句.You must come here. You must come to school at seven. You must come and take me_____from here work must come first中come为啥不加s You must come as soon as you can.同义句转换：You must come [ ][ ][ ][ ]. you must not come home late 中come home能用get come代替吗? you must be home和you must come home一样吗 you must work hard to come true your dream you must work hard to come true your dream改错 school time you come to on must 排列 you must persist--it will come your way eventually You must come for a visit.的同义句 You must come back every month.Yes,I ( ).选 will,must,should ,can,为什么, Come here .过来.=You must come here .你必须过来.请问什么时候must后面加be,什么时候不加?