It was only after I came across that matter_______ how important it was to master a foreign language.

Mr. Wang made up his mind to devote all he could______his oral English before going abroad .

Could we see each other at nine o’clock tomorrow morning? —Sorry, let’s make it ______________ time.

下列关于文学常识的说法，有错误的一项是(3分)

I believe Tom to be a great businessman like Bill Gates in the future. —Why do you think so? —Because he is ________ in business.