I recognized him _______ I saw him, though we had been apart for over a decade.
It’s ten years since the scientist ___on his life’s work of discovering the valuable chemical.
Although there are no classes in the afternoon now, no student ______ go out of school without the head teacher’s permission.
Though _______ money, his parents managed to send him abroad.
Nowhere else in such a small town, I think _____ a book as good as this one.
--- I’m going to have lunch. Do you mind talking about your plan _____ lunch? ---All right.