---Dad, I'm confused what I am going to do after graduation. ---You'd better first explore your talents and get to know yourself so as to find out __________ your real interests lie.
He speaks English as fluently as if he__________an Englishman.
Without electronic computers,much of today’s__________advanced technology.
.But for the storm,we__________earlier.
He described the town as if he__________ it himself.
John is so strongly built that he looks as if he __________as elephant.