Who taught English?— Nobody. We taught .

The light in his office is still on. Do you know ?—In order to prepare for tomorrow’s meeting.

Did you see the girl in white pass by just now?— No, sir. I a newspaper.

Although Fleming discovered Penicillin, it was over a decade ______ someone else turned it into the great drug of the

I don’t think I can understand this book. The subject it deals with is not familiar ______ me.