Suppose I give you a ring and let you know.这句话里面为什么suppose在句首,怎么翻译

I suppose you could give a talk instead of Jack.suppose为什么不要用过去式? Suppose I give you a ring and let you know.这句话里面为什么suppose在句首,怎么翻译 Suppose you will give a monthly allowance of 100 yuan tomorrow? if i give you a if i give you a I suppose you the man is a worker改为反意疑问句I suppose the man is a worker ,_ You give me hope,I'll give you a future 翻译I will give you a lift I only want to give you a I will give you a call. I want give you a sweet ：I HOPE YOU GIVE ME A CHANCE I'll give you a [急!] I will give you a gift I will give you a big superise. i give you a hard time I give you only a hair. I wanna give you a call