Progress ________so far very good and he is sure that his new book will be finished on time.
—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? —____ my students have a try?
He is only too ready to help others, seldom, ____, refusing them when they turn to him.
—Look, it ____ again. —Yeah. This is the third snow we ____ this spring.
All attentionon the beautiful girl, the boy didn’t notice the teacher enter the classroom.
Constant practice has erased my accent to a pointmany people think I’m a native speaker.