Dr. Black is a professor of chemistry. _______, he is a famous writer.
Seeing the _____ dog, the little boy stood there with a _____ expression on his face.
Almost _______ of the students in this class wear glasses, that is, _______ of them.
Thewe recycle, the we waste.
He ____ a good idea at the meeting.
He could hardly afford time and money on such an overseas vacation.