—Why didn’t David ________his friend’s invitation to the picnic?—Because he had to prepare for the exam.
It's foggy today. I'm not sure _______ the highway will be closed soon.
_______ the students_______ their teacher know about the four people.
Super Brain is_______ an interesting TV program_______ many people like watching it.
My mother keeps all the things in my family in good order. She is_______.
_______(A)award music for the Beijing 2008 0lympic Games was written by Tan Dun, _______ world-famous composer. A. The; a B. The; the C. /; the D. /; a