He must be the new english teacher 中的must为什么要加be

He must be the new english teacher 中的must为什么要加be The old man over there must be my new English teather,______?A mustn't he B must heC isn't he D is he ----Wsa that the new school master who walked by?----_______A.It must be that B.It must have been C.He must be D.This must have been为什么选B啊 She must be ___ when she hears the new. The dentist thought he must be very.The dentist thought he must be very ill. He must be ---- when he heard the exciting news he must ( )here.《be》 He must be happy! The l------is on ,He must be at home. Judging from his a________,he must be from the USA. 单词填空:I must find the o____ of the cell phone.He must be worried. I guess the lord must be in the New York city 歌词 where can he be he _______( may ,must ) be in the school library.选什么? must be the water I must be the must be the money the new teaching building must be completed——tow months,because we'll 英语翻译You must be （）（）（） in the new home