Brad was Jane’s brother!—_______ he reminded me so much of Jane!

一You seem tobe familiar with this city．一I_____ herefor three years．It’s great to be back．

He insisted the person referred ______ put into prison at once.

It is said in the book that Tomas Edison （1847-1931） _______ the world leading inventor for thirty years

Samsome knowledge of the computer just by watching others working on it．