She should be here any moment.为什么用"any"?

麻烦翻译以下jack should be here at any moment.. 英语翻译问题：She is going to be here any moment now, she isn't any trouble为什么用be啊 It's ten o'clock now.Jack ___ be here at any moment. It's already 7：00.Jack ---be here at any moment.A.must B.can It's nearly seven o'clock.Jack ____ be here at any moment.A. It's nearly eight o'clock.He ( ) be here at any moment. It's nearly 7 o'clock.Jack ( ) be here at any moment. It's nearly seven o'clock.Jack __ be here at any moment It's nearly seven o'clock . Jack ____ be here at any moment i can not tell her age .she could be ( )from 30 to 40为什么用any She was sad because of _____ any chance left为什么用there not be