I must be on time.对I提问,怎么提问?（ ）must be on time?括号里?

I must be on time.对I提问,怎么提问?（ ）must be on time?括号里? must i time on be 怎么连成一句话啊! I must f___my homework on time I'm ( )be on time. I made ( ) a condition that everybody must be on time.1.that2.this3.it4./说明理由 英语翻译Time is money!Its time and that time must be watched.Time goes on,and I stopped inhere is my silly because of you. Sorry ,I must be on you ,will be I must finish my homework on time改为被字句 i hear form my friend every week...each student must be on time为什么前面用every后面用each I must be i must be to I must be I MUST BE I must be the I must be happy. i see you on . so u must be in here i must be at work at 10 o'clock.My employer will confirm that I was there on time如题,他这里的must be是连用的吗?表示猜测 还是说be只是单纯做谓语而已 i must have a ipad 对还是i must be have a iPad 正确?哪个对?