She would move quietly up to the sparrow on a small tree just to get a better look, her face __________ with childlike expressions at one of God’s simple wonders.
Even if the treatment ________,there’s still no magic pill for patients in the late stage of AIDS.
—Is your husband good at cleaning up the room?—Not very,but when it ________ cooking,he is much better than I am.
I think Jack will ________ a good monitor,so I’d like to vote for him.
The little boy was so careless with his spelling that he often ________ letters from words.
Evidence obtained from observation and experiment is often used to ________ a scientific theory.