英语翻译he must be--------- ------------thirty years old

英语翻译he must be--------- ------------thirty years old he must ( )here.《be》 He must be happy! 英语翻译Dear sister ,you must be happy!must!must! He must be fun.何如改成一般疑问句?Must he be fun 还是Is he fun? He must be fun.何如改成一般疑问句?Must he be fun 还是Is he fun? He must be verg tired.变反意疑问句? He must be American等于什么 英语翻译以下如同1.he could be running for exercise.2.he might be running to catch a bus.3.it must be teenagers having fun Where is he?He must还是must be on that island.选择题,是选 must 还是 must be.谢谢帮忙! he must be bad.he must be very wise.用either...or连接 The dentist thought he must be very.The dentist thought he must be very ill. 英语翻译He noticed me standing for hours in the November heat and thought I must be hungry. He must be ---- when he heard the exciting news He must be ill ,for he isn't here. He coughs _____-(terrible).He must be ill. He must be at home.为什么用be? 英语翻译I must be 开头 定语从句