He must be shy,__he?

He must be shy,__he? He must be ill,__he looks so pale.A since Bbecause Cas Dfor he must have stayed up late night,__he? He must be happy! he must ( )here.《be》 He must have lost hiswatch at the moment,__he?A.didn"t B.mus Your new deskmate is ( )shy ( )you.You must be kidding.I am Don't be shy He does not seem to be very shy,but why is he afraid to talk 英语翻译He does not seem to be very shy,but why is he afraid to he must be very busy today ,( ) he must be either mad or drunk