Tom is very confident_________ Mary is shy and quiet .
_____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.
— What do you think of the novel written by the well-known writer?— Sorry, no _________!
If my father ______ here yesterday, he would have stopped me from going surfing.
In my opinion, we need to begin ______ we stopped yesterday to ensure we won’t miss anything.
Steve Jobs’ success in digital field proved ______ it took to be a best CEO.